JH4300C: 4/20mA Input, 4/20mA Output Isolated Transmitter
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.
Select JH4300C-AC for AC power, JH4300C-DC for DC power.
Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
The JH4300C plugs into any standard 8-pin circular ("octal") relay socket. JH Technology offers a socket suitable for DIN-rail or surface 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.
4/20mAdc. 24V output drive capability (1,200 ohms max. at 20mA).
+/-0.1% of span or better.
Zero and span each are adjustable approx. +/-15% of span.
+/-0.05% of span or better.
Under 100 milliseconds.
Power, 1,500Vac rms (2,100V peak). Input/Output , 1,000Vac rms (1,400V peak).
-10 to +60 deg. C (14 to 140 deg. F).
+/-0.02% of span per deg. C, or better.
AC, 115 or 230Vrms, 50/60Hz, 2.5V-A. DC, 12 or 24V, 2.5W