4
EWTR/HR/PR 910 12/96 ing
the event of ovverrange or underrange of
the system temperature.
It is recommended to doublecheck the
sensor wiring before diagnosing a probe
as defective.
TECHNICAL DATA
Housing
: black ABS plastic, autoestin-
guish.
Dimensions
: front 72x72 mm
(2.84x2.84"), depth 102 mm (4.00").
Mounting
: flush panel mount with mount-
ing bracket. Panel cut-out 67x67 mm
(2.64x2.64").
Connections
: quick-disconnect screw
terminal blocks (2.5 mm
2
; one wire each
terminal only).
Display
: 12.5 mm LED (0.50").
Push buttons
: located on front panel.
Data storage
: non-volatile EEPROM
memory.
Operating temperature
: –5…65 °C;
(23…149 °F).
Storage temperature
: –30…75 °C;
(–22…167 °F).
Output
: one (1) SPDT relay 8(3)A 250V
AC, or one (1) “static” (switched) output
0/12 Vdc 40 mA.
Programmable analog output
(optional):
4…20 mA or 0…5 V, depending on mod-
el.
Auxiliary output
: 12 Vdc/60 mA (for
transducer power supply).
Inputs
(depending on model): PTC / RTD
(Ni100, Pt100) / TC (J, K) / 4…20 mA
(Ri = 41
Ω
) for EWTR 910, EWHS 28/31 for
EWHR 910 and EWPA 007/030 for EWPR
910.
Resolution
: 1 °C (°F) or 0.1 °C (°F). The
right-most digit can also be set to read-out
in 0 or 5 only, or in all 10 digits.
Accuracy
: better than 0.5% of full scale.
Power supply
(depending on model):
12 Vac/dc ±15%; 220, 110, 24 Vac ±10%,
50/60 Hz.
Eliwell
via dell’Artigianato, 65
Zona Industriale
32010 Pieve d’Alpago (BL)
Italy
Tel39 (0)437 986111
Fac39 (0)437 989066
