Siebe Climate Controls EWLP 120 Manual

WHAT IT IS
EWLP 120 is a data recorder capa-
ble to measure temperature, humid-
ity or pressure from two different
locations.
It is provided with a micro gate in-
put and a relay for alarm signal con-
trol.
HOW IT IS MADE
• Size: 161x192 mm, depth 94 mm
• Housing: ABS plastic
• Mount: wall mount through special
fixing holes
• Protection grade: IP65
• Connections: screw terminal block
• Storage: on non-volatile memory -
capacity 1.600 readings
• Printer type: 24 columns with 7x5
matrix on thermal non-photo sen-
sitive paper, paper width 57 mm
• Outputs: on relay (in exchange) for
external alarm repetition
• Inputs: 2 PTC or PT100 tempera-
ture probes; the second input can
be matched with a humidity or
pressure input. One input for micro
gate and one for backup battery
• Resolution: 0.5 °C, 0.5 Bar and
0.5 %RH
• Accuracy: 0.5 °C, 0.5 Bar and
0.5 %RH
• Power supply: 230 Vac
EWLP 120
temperature recorder

GENERAL DESCRIPTION

The EWLP 120 data recorder is an elec-
tronic device designed to measure temper-
ature, humidity or pressure from two
different locations.
Due to the use of a microprocessor it can
store up to 1600 reading points, with user
programmable storage intervals. Stored
data can be printed with messages in sev-
eral languages.
The instrument can be connected to PTC
or Pt100 probes; alternatively the current
input port can be used for pressure or hu-
midity. It is available in a 161x192 mm ABS
plastic case, 94 mm deep.

COMMANDS ON FRONT PANEL

(response to key pressure is delayed by
approximately 0.5 seconds).
RECORDING 1
The pressure of this key starts recording
related to sensor n. 1; the related led turns
on and the display indicates the value read
by probe 1.
A further key pressure stops recording re-
lated to sensor 1; the related led turns off
and the display indicates the value read by
the probe of sensor 2, when enabled, oth-
erwise the OFF message is displayed.
RECORDING 2
The pressure of this key starts recording
related to sensor n. 2; the related led turns
on and the display indicates the value read
by probe 2.
A further key pressure stops recording re-
lated to sensor 2; the related led turns off.
When the two probes are set to STAND BY
(disabled data recording) the display indi-
cates the OFF message.
When both probes are enabled (enabled
data recording) the led on indicates the
rel. 5/99 ing
zone whose value is displayed, the blinking
reminds that the related zone is enabled for
recording.
CLEAR
The key pressure after print clears from
memory the recordings related to the re-
port printed and enables the recording
again.
PRG
When held pressed for 3 seconds in
STAND BY (OFF message displayed) with
no stored data it allows to enter or exit pa-
rameters programming mode. In case
stored data are present, the display shows
the ErPr alarm code.
MUTE
The key pressure in data recording allows
to silence the alarm by disabling the relat-
ed relay; the code on the display will con-
tinue to show the alarm presence.
(UP)
When pressed in programming mode it al-
lows to skip to the following parameter or
increase its value. In recording mode it se-
lects to display the value related either to
sensor 1 or sensor 2.
(DOWN)
When pressed in programming mode it al-
lows to skip to the following parameter or
increase its value. In temperature recording
mode it selects to display the current time.
LABEL/VALUE
When pressed in parameters programming
mode it allows to switch from the parame-
ter label display to its value, and vice-ver-
sa.
PRINT
The key pressure starts the printing of
recorded data; while printing the display
shows letter P (print), recording is sus-
pended and all keys are disabled.