General Features
The UM-40-ACV is a cost-effective, utility, AC voltage measur-
ing meter with range of 0 to 700.0V AC. The unique resistively
isolated differential input of this meter allows safe measurement
of phase to phase voltages, making it a effective solution to
most high resolution AC voltage measuring applications.
The standard meter is provided with TB-KIT screw terminal
blocks and insulated quick- disconnects. For the greatest con-
venience and ease of use, order the optional pre-configured
Push-On screw terminal connectors. (see Push-On Screw
Terminals and Ordering Information)
Typical Application Connections
AC Voltage measurement in Single-phase Systems.
Maximum display of 500.0V AC.
L
N
AC Volts
up to
500V AC
AC Phase to Phase Voltage measurement
in Multi-phase Systems.
Maximum display of 500.0V AC.
T
R
S
AC Volts
up to
500V AC
The unique differential input allows safe
phase to phase AC line voltage measurements up to 500V AC.
UM-Series utility meters for switchboard and process indication
UM-35-ACA ....AC amps, Scaled or True RMS, (1 or 5 Amp internal shunt), 3.5 digit.
UM-35-ACV ......AC volts, Scaled or True RMS. 199.9V AC/600V AC header selectable 3.5 digit.
UM-35-DCA ....DC mV ±20mV/±50mV/ ±100mV/±200mV header selectable ranges, 3.5 digit
UM-35-DCV .....DC Volts ±2V/±20V/±200V DC header selectable ranges, 3.5 digit.
UM-40-ACA ....AC amps, Scaled or True RMS, (1 or 5 Amp internal shunt), 4.0 digit.
UM-40-ACV ....AC volts, Scaled or True RMS. 199.9V AC/600V AC header selectable, 4.0 digit.
UM-45-DCA .....DC mV ±20mV/±50mV/ ±100mV/±200mV header selectable ranges, 4.5 digit
UM-45-DCV ....DC Volts ±2V/±20V/±200V DC Header selectable ranges, 4.5 digit.
UM-40-ACV manual (UM11)
UM-Series
A utility meter for high resolution AC volts measurement with safe
20K
SPAN
2M
Differential
Differential
to Single
4K32
Hi Voltage
Ended
Protection
Conversion
Optional
2M
20K
UM-40AC
ZERO
May be used with 3 Phase 3 Wire
and 3 Phase 4 Wire Systems.
20K
SPAN
2M
Differential
Differential
to Single
4K32
Hi Voltage
Ended
Protection
Conversion
Optional
2M
20K
UM-40AC
ZERO
Texmate, Inc. Tel. (760) 598-9899 • www.texmate.com
Texmate, Inc. Tel. (760) 598-9899 • www.texmate.com
UM-40-ACV
700.0V AC Meter
4 DIGIT with 0.56" LEDs
in a NEMA type 1 Style Case
resistively isolated differential inputs.
Compatibility
The UM-Series NEMA case style is com-
plementary to Texmate's Classic RP-Series.
For economy, each UM model is dedicated
to a specific application. UMs are ideal for
upgrading or replacing the traditional USA
NEMA case panel meters presently in use.
Specifications
Input Configuration: ........Differential input. Inputs resistively isolated
to 1400V from internal ground of meter
by 1.94MΩ, so that phase to phase
measurements up to 700V AC can be
safely made.
Full Scale Ranges: ..........700V AC full scale
Input Impedance: .............4MΩ minimum.
A/D Converter: .................16 Bit Dual Slope
Accuracy: .........................±(0.05% of reading + 3 counts)
Temperature Coefficient: 100 ppm/°C (Typical)
Warm Up Time: ................2 minutes to specified accuracy
Conversion Rate: .............3 conversions per second (Typical)
Display:.............................4 digit 0.56" Red LED display (standard),
Green or Super Bright Red (optional).
Range 0 to 9999 counts.
Decimal Selection: ..........Header under face plate, X•X•X•X•
Overrange Indication: .....Display flashes "0000"
Power Supply (std): .........120/240V AC, 50/60/400Hz. approx 1.5W.
(Optn) V0-DC/ISO ..........Isolated Switcher. 9 to 36V DC/12 to 24V AC
(Optn) V0-24V ................Isolated Transformer 24V AC ±10%
Operating Temperature: ..–10 to 50 °C
Storage Temperature: .....–20 to 70 °C.
Relative Humidity: ...........95% (non-condensing)
Case Dimensions: ...........Bezel 3.78"Wx1.89"H (96Wx48Hmm)
Depth behind bezel 3.36" (85.3 mm) Plus
0.5 to .9" (12.7 to 22.8mm) depending on
connector used.
Weight: .............................NW. 12oz (0.34kg)
15.6oz (0.44kg). when packed.
UM-35-CL .......Process 4 to 20mA (100.0), optional 24V DC excitation ,easily user
scalable in engineering units from –1999 to +1999. 3.5 digit
UM-35-HZ .......15Hz to 199.9Hz or optional 40Hz to 400Hz range up to 500V AC , 3.5 digit.
UM-35-Pressure..Pressure, strain gage and load cell, 4 and 6 wire, 5V DC excitation,
Header Selectable Sensitivity 2mV/V, 5mV/V, 10mV/V, 20mV/V, 3.5 digit
UM-35-JF ........J thermocouple input, 1° resolution, order °C or °F, 3.5 digit
UM-35-KF .......K thermocouple input, 1° resolution, order °C or °F, 3.5 digit
UM-35-RTD/F ..100Ω platinum RTD, 3 or 4 wire, order °C or °F and 0.1° or 1°, 3.5 digit
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