Signal Conditioner Industry Cross Reference |
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| Replace your old signal conditioners with our 6 year warranty units. Some competitive models have been discontinued or have extremely long lead times. We can replace them quickly. Call us with your old model number and ranges. To ensure compatibility please specify input, output, alarm specifications (for alarm units), and module power and any additional info from the model you are replacing. Models with same series numbers (i.e. 4380) should be directly compatible, but please check ranges, wiring, and power. If you have a competitive model not listed here, we can probably find a compatible replacement. For example some companies may have made a "1040" in the past and it is probably compatible with ours. |
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| Click for API DC Input Alarms | Replaces | Direct Plug-In? | Input | Output |
| API 1000 G | Action Instruments AP 1000 Wilkerson Instruments MM 1000 JH Technologies JH1000 |
Yes | DC voltage or current | 1 DPDT Alarm Relay |
| API 1005 G | Wilkerson Instruments MM 1005 | Yes | 4-20 mA | 1 DPDT Alarm Relay |
| API 1020 G | Action Instruments AP 1020 Wilkerson Instruments MM 1020 JH Technologies JH1020 |
Yes | DC voltage or current | 2 SPDT Alarm Relays |
| API 1025 G | 4-20 mA | 2 SPDT Alarm Relays | ||
| API 1080 G | Action Instruments AP 1080 Wilkerson Instruments FR 1000 |
Yes | DC voltage or current, field selectable | 1 DPDT Alarm Relay |
| APD 1080 | Action Instruments AP 1080 Wilkerson Instruments FR 1000 |
No | DC voltage or current, field selectable | 1 DPDT Alarm Relay |
| API 1090 G | Action Instruments AP 1090 Wilkerson Instruments FR 1020 JH Technologies JH1090P |
Yes | DC voltage or current, field selectable | 2 SPDT Alarm Relays |
| APD 1090 | Action Instruments Q106 Action Instruments G 108 Wilkerson Instruments FR 1020 |
No | DC voltage or current, field selectable | 2 SPDT Alarm Relays |
| APD 1090 D | Action Instruments Q108 | No | DC voltage or current, field selectable | 2 SPDT Alarm Relays |
| Click for API DC Input | Replaces | Direct Plug-In? | Input | Output |
| API 4300 G | Action Instruments AP 4300 Wilkerson Instruments MM 4300 JH Technologies JH4010 JH Technologies JH4300 JH Technologies JH4300C |
Yes | DC voltage or current | DC voltage or current |
| APD 4300 | Action Instruments AP 4300 Wilkerson Instruments DM 4300A Wilkerson Instruments DR 4300 |
No | DC voltage or current | DC voltage or current |
| APD 4300 DF | Action Instruments Q403-1 | No | DC voltage or current | DC voltage or current |
| APD 4300 D DF | Action Instruments Q404-1 | No | DC voltage or current | DC voltage or current |
| API 4310 G | Action Instruments AP 4310 Wilkerson Instruments MM 4310 JH Technologies JH4050 JH Technologies JH4310 |
Yes | DC voltage or current, narrow span | DC voltage or current |
| API 4380 G | Action Instruments AP 4380 Action Instruments AP 4380-2000 Action Instruments AP 4382 Wilkerson Instruments MM 4380A JH Technologies JH4380P |
Yes | DC voltage or current, field selectable | DC voltage or current, field selectable |
| APD 4380 | Action Instruments Q406-0000 Action Instruments Q406-0001 Action Instruments G 408 Wilkerson Instruments DM 4380A Wilkerson Instruments DR 4380A |
No | DC voltage or current, field selectable | DC voltage or current, field selectable |
| APD 4380 D | Action Instruments Q408 | No | DC voltage or current, field selectable | DC voltage or current, field selectable |
| API 4385 G | Action Instruments AP 4382 | Yes | DC voltage or current, field selectable | DC voltage or current, field selectable |
| APD 2000 | Action Instruments AP 4390 | No | Two DC voltage or current | Two DC voltage or current |
| APD 2000 | Action Instruments AP 4391 | No | Two DC voltage or current | Two DC voltage or current |
| APD 2000 | Action Instruments AP 4392 | No | Two DC voltage or current | Two DC voltage or current |
| APD 4393 | Wilkerson Instruments DR 4302 | No | One DC voltage or current | Two DC voltage or current (splitter) |
| APD HV-DC | DC voltage input, field changeable | DC voltage or current, field changeable | ||
| Click for API DC Input Math | Replaces | Direct Plug-In? | Input | Output |
| APD 4400 | Action Instruments AP 4400 JH Technologies JH4400 JH Technologies JH4400I |
No | DC voltage or current A, B, C, and D |
DC voltage or current (A+B+C+D)/4 |
| APD 4401 | JH Technologies JH4401 JH Technologies JH4401I |
No | DC voltage or current A, B, and C |
DC voltage or current (A+B+C)/3 |
| APD 4402 | Action Instruments AP 4402 Wilkerson Instruments MM 4402 JH Technologies JH4402 JH Technologies JH4402I |
No | DC voltage or current A and B |
DC voltage or current (A+B)/2 |
| APD 4403 | JH Technologies JH4403 JH Technologies JH4403I |
No | DC voltage or current A, B, C, and D |
DC voltage or current (A+B+C-D)/3 |
| APD 4404 | JH Technologies JH4404 JH Technologies JH4404I |
No | DC voltage or current A, B, C, and D |
DC voltage or current (A+B-C-D)/2 |
| APD 4405 | JH Technologies JH4405 JH Technologies JH4405I |
No | DC voltage or current A, B, C, and D |
DC voltage or current A-B-C-D |
| APd 4406 | JH Technologies JH4406 JH Technologies JH4406I |
No | DC voltage or current A, B, and C |
DC voltage or current (A+B-C)/2 |
| APD 4407 | JH Technologies JH4407 JH Technologies JH4407I |
No | DC voltage or current A, B, and C |
DC voltage or current A-B-C |
| APD 4408 | Action Instruments AP 4408 Wilkerson Instruments MM 4408 JH Technologies JH4408 JH Technologies JH4408I |
No | DC voltage or current A and B |
DC voltage or current A-B |
| Click for API RTD Input Click for API T/C Input |
Replaces | Direct Plug-In? | Input | Output |
| API 1200 G | Action Instruments AP 1200 Wilkerson Instruments MM 1200 JH Technologies JH1200 |
Yes | Thermocouple | DPDT Alarm Relay |
| API 1220 G | Action Instruments AP 1220 Wilkerson Instruments MM 1220 JH Technologies JH1220 |
Yes | Thermocouple | 2 SPDT Alarm Relays |
| API 1400 G | Action Instruments AP 1400 Wilkerson Instruments MM 1400 JH Technologies JH1400 |
No Yes |
RTD | DPDT Alarm Relays |
| API 1420 G | Action Instruments AP 1420 Wilkerson Instruments MM 1420 JH Technologies JH1420 |
No Yes | RTD | 2 SPDT Alarm Relays |
| API 4001 G L | Action Instruments AP 4001 Wilkerson Instruments MM 4001 JH Technologies JH4001 JH Technologies JH4001I |
Yes | RTD | DC voltage or current |
| API 4130 G L | Action Instruments AP 4130 Wilkerson Instruments MM 4130 Wilkerson Instruments MM 4130L JH Technologies JH4130 |
Yes | Thermocouple | DC voltage or current |
| APD 8000, APD 8000 D | Action Instruments AP 4351 (T/C) Action Instruments AP 4151 (RTD) Action Instruments Q486 |
No | Thermocouple or RTD | Current or voltage |
| Click for API Frequency I/O | Replaces | Direct Plug-In? | Input | Output |
| API 1700 G | Action Instruments AP 1700 Wilkerson Instruments MM 1700 JH Technologies JH1700 |
Yes | Frequency | DPDT Alarm Relay |
| API 7010 G | Action Instruments AP 7010 Wilkerson Instruments MM 7010 JH Technologies JH7010 JH Technologies JH7010I |
Yes | Frequency | DC voltage or current |
| API 7580 G | Action Instruments AP 7380 |
Yes | Frequency, field selectable | DC voltage or current, field selectable |
| API 7500 G | DC voltage or current | Frequency, field selectable | ||
| API 7500 G M02 | Action Instruments AP 7500 | Yes | DC voltage or current | Frequency, field selectable |
| API 7500 G SS | DC voltage or current | Frequency, field selectable | ||
| API 7500 G SS M02 | DC voltage or current | Frequency, field selectable | ||
| Click for API AC Input | Replaces | Direct Plug-In? | Input | Output |
| API 1600 G | Action Instruments AP 1600 Wilkerson Instruments MM 1600 JH Technologies JH1600 |
Yes | AC voltage or current | DPDT Alarm Relay |
| API 1620 G | Action Instruments AP 1620 Wilkerson Instruments MM 1620 JH Technologies JH1620 |
Yes | AC voltage or current | 2 SPDT Alarm Relays |
| API 6010 G | Action Instruments AP 6010 Wilkerson Instruments MM 6010 JH Technologies JH6010I JH Technologies JH6020I |
Yes | AC voltage or current | DC voltage or current |
| API 6380 G | Action Instruments AP 6380 | Yes | AC voltage or current, field selectable | DC voltage or current, field selectable |
| Click for API Potentiometer Input | Replaces | Direct Plug-In? | Input | Output |
| API 4003 G I | Action Instruments AP 4003 Wilkerson Instruments MM 4003 JH Technologies JH4003 JH Technologies JH4003I |
Yes | Any 0-100 Ω to 0-1 MΩ pot. | DC voltage or current |
| API 4008 G | Any 0-100 Ω to 0-1 MΩ pot. | DC voltage or current, field selectable | ||
| Click for API Strain Gauge Input | Replaces | Direct Plug-In? | Input | Output |
| API 4051 G | Action Instruments AP 4051 Action Instruments AP 4251 Wilkerson Instruments MM 4051 JH Technologies JH4051 |
Yes | Strain Gauge, Load Cell, Bridge | DC voltage or current |
| API 4058 G | JH Technologies JH4051I | Yes | Strain Gauge, Load Cell, Bridge, field selectable | DC voltage or current, field selectable |
| API 4059 G | Action Instruments AP 4081 | Yes | Strain Gauge, Load Cell, Bridge, field selectable | DC voltage or current, field selectable |
| APD 4059 | Wilkerson Instruments MM 4051 | No | Strain Gauge, Load Cell, Bridge, field selectable | DC voltage or current, field selectable |
| APD 4059 D | Action Instruments G448 | No | Strain Gauge, Load Cell, Bridge, field selectable | DC voltage or current, field selectable |
| Click for Valve Positioners | Replaces | Direct Plug-In? | Input | Output |
| API 3200 G | Action Instruments AP 3200 Wilkerson Instruments MM 3200 |
Yes | Control input: DC volts or current Feedback potentiometer |
Relay setpoint & deadband field configured |
| API 3200 G M01 | Control input: DC volts Feedback: 1-5 VDC or specify |
Relay setpoint & deadband field configured | ||
| API 3200 G M03 | Control input: DC volts or current Feedback potentiometer using <100% of range |
Relay setpoint & deadband field configured | ||
| API 3200 G M420 | Control input: DC current Feedback: 4-20 mA |
Relay setpoint & deadband field configured |
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