Mighty Module MM4001 Input Transmitter

MM4001 RTD Input Transmitter

Description

The MM4001 provides an output voltage or current proportional to an RTD input signal. It is useful in measuring temperatures with a variety of RTDs.

The module includes filtering and conditioning to reduce susceptibility to transients and noisy operations.

The module utilizes a single constant current source to excite the RTD. An accurate and stable lead wire compensation circuit uses the third lead of the 3-wire RTD to compensate for the RTD lead resistance.

Download MM4001 Brochure

Download MM4001 Manual

Features

	Provides DC Output Proportional to an RTD Input
	3-Wire or 2-Wire, 10 ohms to 2000 ohms RTDs
	Unlimited* Choice of Input/Output Ranges
	Linearized for Platinum RTDs
	Fully Isolated Output Available
	Choice of Power Options
	10 + 5 Year Warranty

Typical Applications

Temperature control, monitoring, and data acquisition.

Mounting

The module is designed to plug into a standard 8-pin relay socket. Part number MP008 is a molded plastic socket suitable for mounting on a flat surface or in a 2 3/4 inch wide PVC snap track (TRK48). Use CLP-1 hold-down clip if needed. A Killark HK Series explosion-proof housing with dome and 8-pin socket is available (HKB-HK2D-8). A DIN rail mounted socket (DMP008) is available for 35mm symmetrical DIN rail.

Specifications

RTD INPUT
3-wire or 2-wire
10 ohms to 2000 ohms

INPUT RANGE
select any range within RTD limit
min span 25°F/14°C
(100°F/55°C with 10 ohms RTD)

EXCITATION CURRENT

10 ohms
100 ohms
1000 ohms
2000 ohms

10 mA
5 mA
0.5 mA
0.2 mA

OUTPUT RANGE
Voltage
select any range from -10 V to +15V
10 mA max load
(min span 0.2 V)

Current
select any range from 0 to 50 mA max
    (min span 1 mA)
24 V compliance**
    18 V compliance for ISO option
    if full scale output >20 mA

OPEN SENSOR OUTPUT
> = full scale

ACCURACY
±0.1% of span

LINEARITY
(Pt RTD, output vs temp)
±0.05% of span
temp > = 32°F/0°C

±0.15% of span
temp < = 32°F/0°C

(others, output vs res)
±0.01% of span

COMMON MODE REJECTION
120 dB, DC to 60 Hz

ISOLATION (Optional)
Output/Input
>500 megohms

Breakdown Voltage
>1000 VAC rms

OUTPUT RIPPLE
<0.1% of span
(peak to peak)

BREAKDOWN, P0WER/CIRCUITRY
>1500 VAC rms

OPERATING TEMPERATURE
14°F to 140°F
-10°C to 60°C

TEMPERATURE STABILITY
±0.02% of span or 0.025 °C/°C
whichever is greater

POWER
115 VAC ±10%, 50/60 Hz
(2.5 W max)

230 VAC ±10%, 50/60 Hz
(2.5 W max)

DC Power Option
24 VDC
    (limits 21-32 VDC)
    (2.5 W max)
Isolation
    DC power supply to input common:
      10 megohms

* Within specified range limits

** Compliance: The sum of all voltage drops in the output loop cannot exceed 24V at rated current.

CONNECTIONS
Power AC L1 or DC +
Power AC L2 or DC -
RTD Lead Compensation
RTD -
RTD +
Output +
Output -

PINS
1
3
4
5
6
7
8