Texmate CM-35XTL Manual

Terminal and Edge Connector Inputs, °C OR °F and less than 1 V Loop Drop.

General Features

The CM-35XTL is a functional replacement for the CM-35X
meter, but requires only a 1 V loop drop to operate, making it
especially suitable for current loops that would otherwise
exceed their power supply capacity with too many devices con-
nected. Its counterpart, the CM-35XT, is a lower-cost alterna-
tive to the CM-35XTL. It has the same pinout as the CM-35XTL
but a higher loop drop of 6.5V, making it suitable for applications
where fewer devices are in the current signal loop.
The meters feature Display Hold, Display Test and Auto-Polarity
indication. The polarity indication may be disabled or reversed
by repositioning jumper clips on internal header pins. Another
feature of the CM-series meters is the 4 1/2 digit LCD display
which provides for a non-active trailing dummy zero or a °C/°F
descriptor. Descriptor indication may be disabled or re-pro-
grammed by repositioning jumper clips on internal header pins.
The CM-35XTL & CM-35XT are designed to be easily user
scaled and calibrated to almost any conceivable engineering
unit, such as temperature, pressure, viscosity or flow rates etc.,
without requiring component changes.

Typical Application Connections

Other devices can also be
added to the loop.
_
+
_
24V External
+
Loop Supply
CM-35XT . . . . . . . . . . . . . . . . .3.5 digit LCD, Loop Powered, 4-20mA (1.0.0.0.0)
September 10, 2003 CM-35XTL Data Sheet(X08)
Available in stackable
cases (see rear page)
A Multirange, Easily-Scaled 4-20 mA Process Meter with Screw
Fully User Scalable
ZERO
SPAN
1
10 to 1500
1400 to 3000
2900 to 4000
3
CAL
Negative
Mid Range
Positive
CM-35XTL
CM-Series, The Choice for Loop-Powered Meters
Texmate, Inc. Tel. (760) 598-9899 • www.texmate.com
CM-Series
CM-35XTL
Loop-Powered Process Meter
3 1/2 Digit 0.48" LCD
in a Slim Bezel Case
Compatibility
The CM-Series is shipped in a standard Slim
Bezel case. The Slim Bezel case is compatible
with the TM, SM, PM, & SP Series of meters. The
CM-Series can be ordered in End Mount cases
for twin mounting or combinations of multiple
center mount cases and two end mount cases
for stack mounting.

Specifications

Input Configuration: ....Series connection to 4-20 mA DC
Loop Excitation:............External
Full Scale Ranges:........Standard meter is adjustable to any scaling
Input Impedance: ..........1 volt drop @ 20 mA
Maximum Overcurrent: ....200 mA continuous
A/D Converter: ..............12 bit dual slope
Accuracy: ......................±(0.05% of reading + 2 digits)
Temperature Coefficient: ..100 ppm/˚C (typical)
Warm Up Time: ..............One minute to specified accuracy
Conversion Rate: ..........3 readings per second
Display: ..........................0.48" Liquid Crystal Display (LCD)
Polarity:..........................Automatically displays either "+" or "–";
Decimal Selection: ........User programmable to three positions
Over-range Indication:..When input exceeds full scale on any range
Power Supply:..................No Separate Power Supply is Required; as
Operating Temp.: ..........–20°C to +50°C
Storage Temperature:........-20˚C to +70˚C
Relative Humidity: ............95% (non condensing)
Case Dimensions: ........Bezel (2.755"W x 1.170"H) 69.68mmW x 29.72mmH
Weight: ..........................87 gms (3.1 oz)
CM-35XTL . . . . . . . .3.5 digit LCD, 1 Volt Drop, Loop Powered, 4-20mA (1.0.0.0.0)
current loop
between –1999 to +1999 without component
changes
"Display Hold"
header programmable polarity disable and
reversal
being used, most significant "1" digit and
polarity symbol are displayed with all other
digits blank
the unit derives its power from the
4-20 mA current loop signal
Depth behind bezel (3.315") 84.2mm
Plus (0.685") 17.4mm for connector
142 gms (5 oz) when packed
SLIM
BEZEL
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