|
JH4300C: 4-20mA Input, 4-20mA Output Current
Isolator
-
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 8-Pin Socket Mounting
-
AC
or DC Power Options
|
|
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 the Model JH4300
DC Input Transmitter. For other ranges or additional options, please
refer to Model JH4300.
ORDERING INFORMATION
| Model
Number: |
JH4300C-AC
for AC power,
JH4300C-DC for DC power. |
| Input
Range: |
4/20mAdc. |
| Output
Range: |
4/20mAdc.
|
| Power:
|
Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
|
INSTALLATION AND CONNECTIONS
These transmitters plug 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 Mounting
Hardware]
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 Signal plus (+).
Pin 6: Input Signal minus (-).
Pin 7: Output Signal plus (+).
Pin 8: Output Signal minus (-).
DETAILED SPECIFICATIONS
|
Input
Capabilities:
|
4/20mAdc. 62 ohms input
resistance (1-1/4V drop at 20mA). |
|
|
|
|
|
Output
Capabilities:
|
4/20mAdc. 24V output drive
capability (1,200 ohms max. at 20mA). |
|
Accuracy
(factory calibration):
|
+/-0.1% of span or 10 microvolts,
whichever is greater
|
|
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 (JH4300 only), 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.
|
|
