Transmitters PLUG-IN Temperature RTD JH4001I (Platinum, Copper, Nickel)
Monday, 06 June 2011 03:28 Last Updated on Sunday, 28 August 2011 23:45 Written by Administrator

RTD (RESISTANCE THERMOMETER) INPUT TRANSMITTER
PLUG-IN MODULE, FIXED RANGE

JH Technology transmitter

 
JH4001I: RTD Input, Input/Output Isolated
    • Linearized for Platinum RTD. Available for others
    • 3-Wire Lead Resistance Compensation (4-Wire Available)
    • Quick-Check Red/Green Output LEDs
    • Industry Standard Pinouts (8-Pin Socket)
    • AC or DC Power Options

    JH4001I
    PDF
    DATA SHEET

    JH4001I
    PDF
    MANUAL

Model JH4001I provides a DC output proportional to temperature as measured by a resistance thermometer (RTD). A fixed-range device, it is precisely calibrated to your specified range at the factory. 

Three-wire input circuitry compensates for lead wire resistance. (A 4-wire input option is available.) When ordered for use with platinum RTDs, linearization is included. All other types are not linearized: output is proportional to the input resistance. Contact the factory for nonstandard requirements or for use with resistance inputs other than RTDs.

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.

Available options include AC or DC power choices and reverse-action Option RT (decreasing output with increasing input).

ORDERING INFORMATION

Model Number:  

Select JH4001I-AC for AC power, JH4001I-DC for DC power.
RTD:  

Specify any standard RTD type between 10 and 2,000 ohms, or provide details for nonstandard RTD or resistance input.
Input Range:  

Specify any range allowed by the "Input Capabilities" spec, below.
Output Range:  

Specify any DC voltage or current range allowed by the "Output Capabilities" spec, below.
4-Wire RTD:

Specify Option 4-Wire
Power:  

Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
Reverse-Acting Transmitter  (decreasing output with increasing input):

Specify Option RT.
Loop-Powered Output:  

4/20mA "current sink" output stage for connection to devices whose inputs provide 24Vdc loop excitation. Specify Option LPO.
Urethane Coating:  

Specify Option "U"

INSTALLATION AND CONNECTIONS

These transmitters plug 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. (If 4-wire, same end of RTD as Pin 6)
Pin 3: Power (AC or, if DC power option, DC minus).
Pin 4: RTD.
Pin 5: RTD compensation (same end of RTD as Pin 4).
Pin 6: RTD (opposite end from Pin 4).
Pin 7: Output plus.
Pin 8: Output minus.

DETAILED SPECIFICATIONS

RTD Type:  

Any RTD from 10 to 2,000 ohms. 3-wire connection (may also be connected as 2-wire.  4-wire option available).  Contact factory for other types of resistance inputs..
Input Capabilities:  

Minimum span 10 deg C (18 deg F) or 1 ohm, whichever is greater. Any range up to maximum covered by RTD. Offset ranges are allowed.
Voltage Output Capabilities:

1 volt minimum output span, -10 to +15V absolute limit. Offset ranges are allowed. Maximum output load, 10mA (1Kohm at 10V output).
Current Output Capabilities:

1mA minimum output span, 0 to +25mA absolute limit. Positive offsets are allowed, negative outputs are not. Output drive capability, 24V (1,200 ohms max. at 20mA output).
Accuracy (factory calibration):  

+/-0.1% of span or 0.02 ohms, whichever is greater.
Adjustability:  

Zero and span each are adjustable approx. +/-15% of span.
Linearization:  

Platinum inputs are linearized for RTD curve. All others are linear with input resistance.
Response Time:  

Under 100 milliseconds.
Isolation:  

Power, 1500Vac rms (2,100V peak). Input/Output 1000Vac 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.