www.z-trauq.
com
z-trauq@qc.aira.com
877-798-7287
Current Transducers
Solid Core
Typical W/D
Only two wires are required to connect
the transducer to any of our ESM process
indicators thanks to their on-board power
supply.
ESM 3700
used with separate
power supply
These transducers can be used to send a
signal to an analog meter PLC, SCADA
system or any other device requiring a
4-20mA reference.
Acceptable loop power is 10 to 30VDC.
Use only with original Z-TRAUQ INC.
current transformers
The Z-TRAUQ current transducers
can be used in conjunction with a
wide variety of Z-TRAUQ current
transformers both solid and split
core.
Please visit
www.z-trauq.com/ctpg.html
for the complete listing.
Select the model whose physical
dimensions suit the application
followed by the primary amps
then 20mA.
eg. CT4FSH800:20mA
This example details a flexible
split core CT that has a 106.7mm
(4.2 in.) window for an 800 amp
circuit with a 4 - 20 mA output.
Split Core
Use only with original Z-TRAUQ INC.
current transformers
ZTR9-59-420-1030
ZTR9-59-420-1030
10 - 30vdc
Power Supply
4-20mA
11
10
ESM 3700
Use only with original Z-TRAUQ INC.
current transformers
ZTR9-59-420-1030
ESM 4900
ESM 4900
Meter
Common Uses
Secondary outputs from current
transformers are weak; hence, the distance
between it and the meter should be kept
as short as possible, typically less than 60
cm (24 in). Using a Z-TRAUQ current
transformer having a 4-20mA DC output
insures accuracy over greater distances.
These ESM displays can be scaled and
the SPDT output can be used either as an
alarm or part of the control circuit either
stopping, inhibiting or starting another
piece of equipment.
The ESM 4900 (48H x 96W mm)
is part of a series of indicators offered
in several DIN sizes including 48 x 48
(1/16), 72 x 72 (1/8) and 96 x96 mm (1/4).
All have the expansibility of the ESM
4900. So, if you require additional outputs
whether relay, SSR, transistor or analog,
this is the ideal series. These can also be
connected to our data logging software via
the standard RS 232 or optional RS 485
com port.
Terminal Layout
Large 4 digits display
Scale from -1999 to 9999
Moveable decimal point
SPDT relay output
Additional outputs for ESM 4900
Manual or Automatic reset from fault
User adjustable Low & High limits
Password protection
LED status indicators
Dual and muti-point scaling (ESM 4900)
Teach function (ESM 3700)
Display last measurement or average of
0/4 to 20mAdc
0 to 10Vdc
0 to 50mVdc
Loop Power
Output-3
Standard Relay Output
12 Vdc
Max 50mA
Features
MODULE - 1
7
NC
Process Input
(dc Voltage/Current)
NO
10
11
12
ESM-4900
OUTPUT - 3
5A@250VAC
Communication
Socket
MODULE - 2
CAT II
13
14
15
16
17
18
19
20
21
22
23
24
Supply Voltage
Optional Output Modules
last 2, 4, 8 or 16 measurements (ESM 3700)
Specifications
ESM 3700
ESM 4900
Dimensions:.................35H x 77W x 62.5D mm
1.4H x 3.0W x 2.5D in
Display:........................4 LED, 10mm (0.4 in) tall
Humidity:.....................0 to 90% RH non condensing
Operating Temp.:.........0 to 50oC
Power consumption:....1.5VA
Protection:...................Nema 4x with optional gasket
Dimensions:.................48H x 96W x 76D mm (1.9H x 3.8W x 3.0D in)
Display:........................4 LED, 20.3mm (0.8 in) tall
Humidity:.....................0 to 90% RH non condensing
Operating Temp.:.........0 to 50oC
Power consumption:....6VA
Protection:...................Nema 4x
Communication:..........RS232 Modbus/RTU or optional RS485
Ordering Information
Complete the model number with the appropriate suffix.
Complete the model number with the appropriate suffix.
eg. ESM 3700-42001 for a process indicator requiring
120vac supply voltage and having a SPDT relay output.
eg. ESM 4900-12011/02.04 for a process indicator
requiring 120vac supply voltage and having a SPDT
relay, a SSR and analog output.
For RS485 change D to 2.
ESM 3700
A
A BC
20
Supply Voltage
A BC
20
ESM 4900
A
Supply Voltage
FG HI
100 - 240 Vac (-15% +10%) 50/60 Hz
24 Vac/dc (-15% +10%) 50/60 Hz
24 Vac/dc (-15% +10%) 50/60 Hz
115 Vac (+15%) 50/60 Hz
12 Vac/dc (-15% +10%) 50/60 Hz
230 vac (+15%) 50/60 Hz
Distributed by:
FG & HI
Description
The ESM 4900 can
be fitted with two
additional outputs:
dry contact, SSR,
transistor and
analog.
Product code
when ordered separately
00
None
01
Relay 3A@250vac
EMO 400
02
SSR 15-18vdc 50mA
EMO 410
03
Transistor 24vdc 50mA
EMO 420
04
volt/current 0/4-20mA, 0-10vdc
EMO 430
For AC applications
use one of our current transformer/transducer combinations.
For DC applications
specify the primary current rating for your
Shunt and whether base mounted or not.
Please visit www.z-trauq.com/shunts.html
