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Simpson M240 Temperature Digital Panel Meter
Click image to enlarge
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Features:
- Minimum Depth Indicator - Less Than 2.5” (60mm) of Space
Required Behind the Panel
- Stackable Mounting Bracket Included for Easy
Installation
- 4 Digit, 0.56” (14.2mm) High, Red LED Display Standard
Screw Terminals for Easy Installation
- User-Selectable Input Type (J or K T/C, RTD Pt100, mV)
- 85-250VAC Power Supply
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Description
| Simpson’s Mini-Max Temperature Indicators
provide high quality, accuracy and reliability in a compact case.
These microprocessor-based units offer a 0.56” bright red,
4 digit LED display for high visibility. The four input types and
choice of °C or °F display are jumper-selectable and can
be changed with no recalibration necessary. A unique mounting bracket
is provided to allow for vertical and horizontal stacking of multiple
indicators. All Mini-Max units feature a 3/64 DIN, high-impact plastic
case. Screw terminals are provided for easy wiring of the power
supply and input signal connections. |
Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| M240 |
3-½ Digit Mini-Max Process Indicator Panel |
| Call |  |
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Ordering Options
Specifications
| Display |
| Type |
7-segment red LED |
| Height |
0.56” (14.2mm) |
| Display resolution |
0.1º from -99.9º to 999.9º; 1.0º below -100º or above 1000º; 0.1mV for mV indication |
| Overrange indication (T/C or mV) |
The left-most digit shows 1: “1” (other digits are blank) |
| Open or faulty input connection |
“----” |
| Uncalibrated instrument |
Display will flash for 2 minutes upon application of power, alternating between “----” and the measured value |
| Polarity |
Automatic, with “-” indication; “+” indication implied |
| POWER REQUIREMENTS |
| AC Voltage |
85-250VAC @50-60Hz |
| Power Consumption |
2VA |
| INPUTS |
| Thermocouple |
J, K |
| Millivolt |
±70mV (uncompensated for temperature) |
| Lead Resistance Effect |
-13µV/100 max. |
| RTD |
Platinum 100 Ohm (.00385 alpha) |
| Lead Resistance Effect |
4-wire: -.26°C/100V max.
2- and 3-wire: 1°C/.29° max. |
| Temperature Coefficient |
±0.1°C / °C |
Input Type |
Temperature
Range |
Accuracy @25°C |
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K T/C |
-200 to 1370°C
-328 to 2498°F |
±(0.1% rdg +1°C)
±(0.1% rdg +1.8°F) |
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J T/C |
-200 to 1200°C
-328 to 2192°F |
±(0.1% rdg +1°C)
±(0.1% rdg +1.8°F) |
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RTD Pt100
(4-wire) |
-200 to 850°C
-328 to 1562°F |
±(0.2% rdg +1°C)
±(0.2% rdg +1.8°F) |
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mV
(+0.1mV) |
-70 to 70mV
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±(0.1% rdg +0.1mV) |
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| Input Impedance |
22M |
| ENVIRONMENTAL |
| Operating Temperature |
0 to 55°C |
| Storage Temperature |
-10 to 60°C |
| Relative Humidity |
0 to 85% non-condensing |
| Warmup time |
Less than 20 minutes |
| ANALOG TO DIGITAL CONVERSION |
| Technique |
Special dual slope |
| Rate |
2 samples per second |
| NOISE REJECTION |
| NMRR |
60dB, 50/60Hz |
| MECHANICAL |
| Bezel |
0.95” x 2.84”(24mm x 72mm) |
| Depth |
2.36”(60mm) |
| Panel cutout |
0.88” x 2.68”(22.2mm x 68mm) |
| Weight |
3.5oz (99.2g) |
| Case Material |
94-0,UL-rated, glass-filled thermoplastic |
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