Simpson Mini-Max series User Manual

2.83"
0.94"
0.125" Max
Panel Thickness
2.36"
.86"
0.16"
.89"
2.71"
2.66”
Mounting Requirements
Insert the Mini-Max through the panel, and then slide the mounting brack-
et on to the Mini-Max. The mounting bracket allows Mini-Max units to
be stacked side-to-side or top-to-bottom and maintain the DIN standard
panel arrangements in 24mm by 72mm multiples. Panel cutout instruc-
tions for stacking multiple units are provided under “stacking features.”
Mini-Max M240 Series Digital Panel Meter
Installation and Panel Cutout
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 and is adjustable through 6
levels of brightness. 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.
Temperature
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
Brightness Adjustment

Simpson Mini-Max series Specifications

General

Model	Mini-Max Series
Category	Measuring Instruments
Voltage Range	Up to 1000V AC/DC
DC Voltage Ranges	0-2.5V, 0-10V, 0-50V, 0-250V, 0-1000V
AC Voltage Ranges	0-10V, 0-50V, 0-250V, 0-1000V
DC Current Ranges	0-50uA
Input Impedance	20k Ohms/Volt DC

Summary

Installation and Panel Cutout

Mounting Requirements

Details on how to insert the Mini-Max through the panel and slide the mounting bracket for stacking.

Specifications

Display Specifications

Details on the 7-segment red LED display type, height, and resolution.

Input Types and Ranges

Information on supported input types like Thermocouple, Millivolt, and RTD with their respective ranges and accuracies.

Environmental Conditions

Specifies operating and storage temperatures, and relative humidity limits.

Analog to Digital Conversion

Details the technique and rate used for analog to digital conversion.

Noise Rejection

Specifies the NMRR (Noise Magnetic Ratio) for signal integrity.

Mechanical Specifications

Provides dimensions for the bezel, depth, panel cutout, and weight.

Wiring Diagram and Input Selection

Wiring Diagram Overview

Illustrates the terminal connections for Thermocouple and RTD inputs, and power supply.

Input Type Configuration

Explains how to change the input type using jumpers JU1 through JU4.

Stacking Features

Stacking Dimensions and Procedure

Details how to connect multiple units vertically or horizontally using mounting brackets.

Application Example

Ordering Information and Accessories

Product Configuration Guide

Guide to configuring the Mini-Max indicator by selecting basic unit, power supply, input, output, and display.

Accessory Information

Details on available thermocouple probes and their ordering information.

Safety Symbols

Explanation of CAUTION and WARNING symbols used in the manual.