4/20mAdc CURRENT ISOLATOR
PLUG-IN MODULE, FIXED RANGE
JH4300C: 4/20mA Input, 4/20mA Output Isolated Transmitter
- Low-Cost 4/20mA Isolator/Booster
- Drives up to 1,200 ohms. Input drops only 1-1/4 volts (62 ohms).
- Quick-Check Red/Green Output LEDs
- Industry Standard Pinouts (8-Pin Socket)
- AC or DC Power Options
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The Model JH4300C Process Current Isolator takes a 4/20mAdc input and provides an equal, but isolated, 4/20mA output. Isolation eliminates many ground loop and noise problems, while its 24-volt output drive capability "boosts" the signal to drive high-resistance loops. The input is filtered to minimize high-frequency noise and transients.
Red-green Quick-Check LEDs give a quick indication of the relative output. Red is brighter at the low end, green at high, while at mid-scale both are approximately equal. Red-only indicates offscale low while green-only indicates offscale high. AC or DC power choices are available.
The JH4300C is a low-cost, single-range version of our Model JH4300 DC Input Transmitter. For other ranges or additional options, please refer to Model JH4300.
ORDERING INFORMATION
| Model Number: |
Select JH4300-AC for AC power, JH4300-DC for DC power. |
| Input Range: |
4/20mAdc. |
| Output Range: |
4/20mAdc. |
| Power: |
Specify 115Vac, 230Vac, 12Vdc or 24Vdc. |
INSTALLATION AND CONNECTIONS
The JH4300C plugs into any standard 8-pin circular ("octal") relay socket. JH Technology offers two sockets: DS008 for DIN-rail or surface mounting and ST008 for Snap-Track mounting (see the Accessories page). Pin connections are:
Pin 1: Power (AC or, if DC power option, DC plus)
Pin 2: No connection.
Pin 3: Power (AC or, if DC power option, DC minus).
Pin 4: No connection.
Pin 5: Input plus.
Pin 6: Input minus
Pin 7: Output plus.
Pin 8: Output minus.
DETAILED SPECIFICATIONS
| Input: | 4/20mAdc. 62 ohms input resistance (1-1/4V drop at 20mA). |
| Output: |
4/20mAdc. 24V output drive capability (1,200 ohms max. at 20mA). |
| Accuracy (factory calibration): |
+/-0.1% of span or better. |
| Adjustability: |
Zero and span each are adjustable approx. +/-15% of span. |
| Linearity: |
+/-0.05% of span or better. |
| Response Time: |
Under 100 milliseconds. |
| Output Ripple: |
+/-0.05% of span or better. |
| Isolation: |
Power, 1,500Vac rms (2,100V peak). Input/Output , 1,000Vac rms (1,400V peak). |
| Guaranteed Operating Temperature: |
-10 to +60 deg. C (14 to 140 deg. F). |
| Temperature Stability: |
+/-0.02% of span per deg. C, or better. |
| Power Requirements: | AC, 115 or 230Vrms, 50/60Hz, 2.5V-A. DC, 12 or 24V, 2.5W |