Friday, 10 June 2011 17:36 Last Updated on Monday, 22 August 2011 00:22 Written by Administrator

JH5400 RTD INPUT TRANSMITTER
DIN-RAIL MOUNT, FIXED RANGE

JH5400: 100 Ohm Platinum RTD, Linearized

Model numbers JH54x0 reserved for other RTD styles.  Contact factory with your requirements.

    • Available for all RTD Types
    • Linearizes Platinum RTDs
    • 3-Wire Lead Compensation Standard
    • 4-Wire Available
    • High Speed "Option HS" Available
    • Quick-Check Red/Green Output LEDs
    • Unpluggable Terminal Strip
    • AC or DC Power Options

    JH5400
    PDF
    DATA SHEET

    JH5400
    PDF
    MANUAL

JH5400 Series RTD Input Transmitters provide an isolated DC output proportional to temperature as measured by a resistance thermometer (RTD). Model JH5400 specifically designates 100 ohm platinum RTD input: additional model numbers are reserved for other RTD types.

Standard three-wire input circuitry compensates for lead wire resistance. A 4-wire input option is available. Platinum RTDs are linearized to provide true temperature indication. (Other types may or may not be: contact us to discuss your specific requirements.) A low-drift input amplifier helps assure accurate readings under varying ambient conditions.

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.

Standard transmitters include filtering to smooth measurements and minimize noise pickup. When fast response is needed, Option HS speeds the response time to approximately 1 millisecond. Other response speeds are available on special order.

Available options include AC and DC power choices and reverse-acting transmitter (decreasing output with increasing input).

ORDERING INFORMATION

Model Number:  

Specify Model JH5400 for use with 100 ohm platinum RTDs. Other model numbers will be assigned for other RTD types. Add suffix A (for example, JH5400A) for AC power, D for DC power.
RTD Type: 

Determined by model number.
Input Range:  

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

Specify any DC voltage or current range allowed by the "Output Capabilities" spec, below.
Power:  

Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
4-Wire RTD Input:  

Specify Option 4W.
Reverse-Acting Transmitter (decreasing output with increasing input): 

Change last digit of the model number to 1 (for example, JH5401A).
Loop-Powered Output: 

4/20mA "current sink" output stage for connection to devices whose inputs provide 24Vdc loop excitation. Change last digit of the model number to 2 (for example, JH5402A).
High Speed Response:  

Approximately 1 msec (See Specifications). Specify Option HS.
Urethane Coating:  

Specify Option U.

INSTALLATION AND CONNECTIONS

JH5400 Series transmitters snap onto 35mm DIN rail. Connections are made to the front-panel terminals. The terminal strip unplugs to facilitate calibrating or replacing the transmitter.

Connections to the 8 terminals (top to bottom) are:
    1:  RTD.
    2:  RTD compensation (same end of RTD as terminal 1).
    3:  RTD (opposite end)
    4:  Standard - no connection.
        (Option 4W - 4th wire of RTD (same end as terminal 3).
    5:  Output plus.
    6:  Output minus.
    7:  Power (AC or, if DC power option, DC plus).
    8:  Power (AC or, if DC power option, DC minus).

DETAILED SPECIFICATIONS

RTD Type:  

Any RTD from 10 to 2,000 ohms. (Model JH5400 for 100 ohm platinum, other models JH54x0 for other types. Contact factory. Specify RTD type, resistance & slope.)
Input Connection:  

3-wire connection is standard. Specify Option 4W for 4-wire RTD.
Input Capabilities:  

Minimum span 10 deg. C (18 deg. F) or 1 ohm, whichever is greater. Maximum range will cover any RTD's full temperature range.
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.
Linearity:  

Platinum RTDs are linearized. Copper is inherently linear. Contact factory for information on others.
Response Time:  

Standard: Under 100 milliseconds. Option HS: Approximately 95% complete in 1 msec. Frequency response 3dB down at approx. 600Hz.
Isolation:  

3-way (Power/Input/Output) 1,500Vac rms (2,100V peak).
Guaranteed Operating Temperature:  

-10 to +60 deg. C (14 to 140 deg. F).
Temperature Stability:  

+/-(0.02% of span plus 0.002 deg C) per deg. C, or better.

Power Requirements:  

AC, 115 or 230Vrms, 50/60Hz, 2.5V-A. DC, 12 or 24V, 2.5W.