Gefran 40A 48, 40A 96 Data Sheet

Main applications

• Extrusion lines

• Electrical panels

• Test equipment

• Food processing plant

40A 48 / 40A 96

AC CURRENT / VOLTAGE CONFIGURABLE INDICATOR - ALARM UNITS

Main features

• AC voltage, AC current direct input on
instrument terminals

• Protected code configurable from
keypad

• 4 to 20mA retransmitted output

• Up to 3 relay outputs

• Configurable by serial link

• Labels to customize measured

physical unit

GENERAL

Microprocessor based indicator in both
48x48 (1/16 DIN) and 96x48 (1/8 DIN)
formats manifactured with SMT.
The instruments have a lexan membrane
faceplate (guaranteed to IP65) which has
3 keys, a 3 digit display for the 48x48 for­mat and a 3 / 4 digit display for the 96x48

format, and 3 indicating LED’s for the

output statuses.
The input signal section provides for the
visualisation of the sinusoidal effective
value corresponding to following signals:

• AC voltage:
0 to 2, 0 to 20, 0 to 200 and
0 to 500Vac

• AC current:
0 to 20, 0 to 50, 0 to 200mAac
0 to 1, 0 to 5Aac
The selection is made using the faceplate
keys and correct input terminals.
No external shunt or adapter is required.
A digital input (24Vdc/4mA) is available
for resetting, hold, flash, peak handling
or releasing latch. The instruments have
a maximum of 3 outputs that can be
mechanical relays (5A/250V) or logic
outputs (0 to 11Vdc).

One output of 4 to 20mA (max. 150Ω) is

available for retransmitting the measured
input signal.

The retransmission output, the digital
input and the third output are alternatives
in the 48x48 format, all these options
are available contemporaneously in the
96x48 format.
Finally, a triac can be fitted (as an alter­native to the other two relay outputs) to
drive resistive loads up to a maximum of
2,5A at 220V.
The programming of the instrument is
made easy by grouping the parameters
in function blocks (CFG for the alarm
hysteresis, Inp for the inputs, Out for the
outputs...) and by a simplified data entry
menu.
The configuration can be simplified even
further using the PC programming kit
made up of a connection cable and a
menu guide program that runs under Win­dows (see data sheet cod. WINSTRUM).
A configurable personal software protec­tion code (password protection) can be
used to restrict the levels of editing and
displaying the configuration parameters.

TECHNICAL DATA

Inputs

Accuracy:
0,2% f.s. ±1 digit for 2Vac, 20Vac,
20mAac, 50mAac, 1Aac inputs
0,5% f.s. ±1 digit for 200Vac, 500Vac,
200mAac, 5Aac inputs
The measurement of the effective value
considers the sinusoidal signal.
Sampling time 120msec, resolution 8000
steps.
Configurable decimal point position, scale

-1999 to 9999 (4 digit display) or -999 to
999 (3 digit display with sign, only for the
96 format) with over- and under-range
indication.
Voltage input for 2Vac, 20Vac, 200Vac,

500Vac with Ri > 1MΩ.

Current input for 20mAac, 50mAac,

200mAac with Ri = 1,6Ω.

Current input for 1Aac, 5Aac with Ri = 16

mΩ.

Digital input

Ri = 5,6KΩ (24V, 4mA) isolated to 1500V

Function is configurable as alarm or
memory reset, hold, flash, zero, display
of the peak value (max., min. or peak to
peak).

Outputs

Relay

with NO (NC) contacts rated at 5A/250V
at cosj = 1.

Logic (only for Out1 and Out2)
Output type D 11Vdc, Rout = 220Ω
(6V/20mA).

Triac (only 96 format) for Out1,
excluded Out2
24 to 240Vac ±10%, 3Amax
Snubberless, I

A maximum of three trip points can be
set as absolute, deviation or symmetrical
deviation alarms. The hysteresis of each
alarm is individually configurable.
Alarm masking with exclusion on power
up, memory and configurable delay and
minimum intervention time.
The trip point may be set at any point on
the scale.

Analog Retransmission

4 to 20mA on max. 150Ω load.

2

t = 128A2sec

Humidity: 20 to 85%Ur non-condensing

weIght

160g. (48 format), 320g. (96 format) in
the complete version

pOwer supply

40A 48

Standard: 100...240Vac ± 10% max 8VA
optional: 20...27Vac/dc ± 10% max 8VA

40A 96

Standard: 100...240Vac/dc ±10% max
7,5VA
optional: 11...27Vac/dc ± 10% max 5VA

50/60Hz,

Protected by an internal fuse

(not replaceable by the operator).

AmbIent cOndItIOns

Working temperature range: 0 to 50°C
Storage temperature range: -20 to 70°C

FACEPLATE DESCRIPTION

A - PV display: indication of process variable
B - Label for engineering units
C - “Function” key
D - “Raise” and “Lower” keys
E - Indication of the states of the outputs
F - Key not used

E
A

B

F

C

Red LED display
IP65 faceplate protection

D

D

A

C

E

B