Simpson Mini-Max series Manuel utilisateur

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

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

Open or faulty input connection: “----”

Uncalibrated instrument:

Display will flash continuously "INFO FAIL CALB

REQD" upon application of power.

Polarity:

Automatic, with “-” indication; “+” indication

implied

POWER REQUIREMENTS

AC Voltage: 85-250VAC @50-60Hz

Power Consumption: 2VA

Overrange indication (T/C or mV): The left-

most digit shows 1: "1" (other digits are blank)

INPUTS

Thermocouple: J, K

Millivolt:

±70mV (uncompensated for temperature)

Lead Resistance Effect: -13V/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: ±0.2C / C

Input Impedance: 22M

Input Type Temperature Range Accuracy @258C

K T/C -100 to 1370C (0.1% rdg +1.5C)

-148 to 2498F (0.1% rdg +2.7F)

J T/C -100 to 1200C (0.1% rdg +1.5C)

-148 to 2192F (0.1% rdg +2.7F)

RTD Pt100 -100 to 850C (0.2% rdg +1.5C)

(4-wire) -148 to 1562F (0.2% rdg +2.7F)

mV -70 to 70mV (0.1% rdg +0.1mV)

(+0.1mV)

Specifications

Wiring Display

Input Selection

TERMINAL

1 2

INPUT (+)

INPUT (-)

5 6

BRIGHTNESS

(Short to Adjust)

TERMINAL 7 8

LINE VOLTAGE

RTD

RED (+)

WHITE( )

TERMINAL

RED (+) (3 WIRE AND 4 WIRE RTD'S)

WHITE ( )(4 WIRE RTD'S ONLY)

JUMPER (FOR 2 WIRE RTD ONLY)

JUMPER FOR 2 AND 3 WIRE RTD

1234

Power Supply: Connect the power supply to terminals #7 and #8 as

shown above.

Display Adjust: Connect a short between terminals 5 and 6 as

shown. Shorting these terminals will cause the display to continuously

cycle through 6 levels of brightness. When the desired brightness level

is attained, remove the short. The selected brightness level is stored in

memory and will be maintained. To readjust brightness level, repeat the

above procedure.

NOTE: Recalibration is not required after an input change. If

desired, however, procedure is available from Technical Support.

Input Type JU1 JU2 JU3 JU4

J T/C, C IN OUT OUT IN

J T/C, F IN IN OUT IN

K T/C, C IN OUT OUT OUT

K T/C, F IN IN OUT OUT

RTD Pt100, C OUT OUT IN OUT

RTD Pt100, F OUT IN IN OUT

mV IN OUT IN IN

All Mini-Max Temperature Indicators are configured initially per the

customer specifications. Should the application change, the input type

can be changed as follows:

See diagram at right for jumper locations.

THERMOCOUPLE

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: 12 bit Successive Approximation (SAR)

Rate: 10 samples per second.

NOISE REJECTION

NMRR: 60dB, 50/60Hz

MECHANICAL

Bezel: 0.94” x 2.83”

(24mm x 72mm)

Depth: 2.36”(60mm)

Panel cutout: 0.89” x 2.71”

(22.2mm x 68mm)

Weight: 3.5oz (99.2g)

Case Material:

Stacking Features

The mounting brackets, included with every Mini-Max, can be con-

nected together. Multiple units can be mounted in a single opening,

allowing perfect alignment.

To punch one hole for multiple units, be sure to adjust the standard

panel cutout dimensions as shown here; otherwise the meters will not

fit properly in the hole.

Mounting multiple units is quick and easy. Install the first meter (bot-

tom unit first if stacking vertically). Position the next mounting bracket

snugly against the first one, and slide the second meter into place.

Repeat for remaining units.

2.68"

.071"

.88"

Standard cutout

Add to standard

when stacking

.89"

2.71"

Standard cutout

.16"

Add to standard when stacking

Horizontal

Vertical

Horizontal

Application Example

A plant engineer wants to install a meter in a panel to measure the

temperature of a nearby tank of liquid. The meter must accept a type

J thermocouple input and be capable of measuring at least 0-400˚F.

Depth behind the panel must also be kept to a minimum. A Temperature

Mini-Max M240-0-91-0-F will meet the engineer’s requirements.

Prior to connecting the thermocouple, make sure the jumpers are

positioned as follows:

- JU1, JU2, JU4 IN

- JU3 OUT

WIRING DIAGRAM

C

F

Ordering Information

Safety Symbols

The WARNING sign denotes a hazard. It calls atten-

tion to a procedure, practice, or the like, which, if not

correctly performed or adhered to, could result in

personal injury.

The CAUTION sign denotes a hazard. It calls attention

to an operating procedure, practice, or the like, which,

if not correctly adhered to could result in damage to or

destruction of part or all of the instrument.

Accessories

Your Mini-Max Temperature Indicator can be configured by making an entry for each box.

Basic Unit Power Supply Input Output Display*

M240 4 Digit

Indicator

J T/C

K T/C

RTD Pt100

mV DC

085-250 VAC None

* Choose C or F for thermocouple or RTD. mVDC input displays mV reading only, not degrees.

Simpson thermocouples are available in custom lengths per your

application. Calibration type, wire gauge, insulation type and length

are determined by your specifications, and entered into the following

ordering diagram.

Thermocouple Ordering Information

(Termination End: HJ-Beaded, CJ-Solid Bare Wire)

THERMOCOUPLE PROBES (QUICK DISCONNECT)

Simpson offers "Quick Disconnect" style thermocouples which include

a probe and an ANSI color-coded jack and plug. Each 12-inch thermo-

couple probe is compacted with MgO insulation, with 316 stainless steel

and 0.188 inch diameter outer sheath. Extra plugs and jacks are sold

separately. See the table below for ordering information.

THERMOCOUPLE PROBES (48 INCH LEAD WIRE)

Simpson's transition joint thermocouple probes are constructed with

MgO insulation. The probe includes 48" of Teflon® coated thermo-

couple wire and stripped leads.

Thermocouple Ordering Information

(Termination End: HJ-Beaded, CJ-Solid Bare Wire)

Cat. No. Description

THJ105 T/C J, 24 Gauge, Fiber Glass Braid, 5 foot

THJ1015 T/C J, 24 Gauge, Fiber Glass Braid, 15 foot

THK105 T/C K, 24 Gauge, Fiber Glass Braid, 5 foot

THK1015 T/C K, 24 Gauge, Fiber Glass Braid, 15 foot

THJ035 T/C J, 20 Gauge, FEP Teﬂon®, 5 foot

THJ315 T/C J, 20 Gauge, FEP Teﬂon®, 15 foot

Catalog Numbers

ANSI Quick 48 Inch

Type Color Code Disconnect Lead Wire

J Black 21238 21242

K Yellow 21239 21243

RTD 21244

SIMPSONELECTRICCOMPANY 520SimpsonAve.,LacduFlambeau,WI 54538•(715)588-3311•FAX(715)588-3326

www.simpsonelectric.com Printed in U.S.A. Part No. 06-116176, Edition 13, 05/14

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