32
INTER 2V4SA, rev.02
INTER 2V4SA
Outside T° Compensation
on High T° Alarms
Outside
Temp.
Time
Room
T°
Alarm
Limit
Set
Point
Normal temperature range (no alarm)
Alarm : temperature out of range
Hi Offset
Lo Offset
11.3. Alarm Settings
11.3.1. Hi/Lo Alarm Offsets & Criti-
cal Alarm
Hi & lo alarm offsets range from 0,3 to
20,0°C (0,5°F to 36,0°F) and the critical
alarm limit ranges from the high alarm limit
to 49,0°C (120,0°F).
• Select the
ALARMS
menu. The low alarm
offset flashes on the display, alternating with
the word "
Lo AL
". Use the adjustment buttons
to set it to the desired value.
• Press the Other Functions button. The high
alarm offset flashes on the display, alternating
with the word "
HI AL
". Use the adjustment
buttons to set it to the desired value.
• Press the Other Functions button. The alarm
type "
TyPE
" is displayed, alternating with the
word "
ALL
" or "
Ind
".
• Use the adjustment buttons to select de-
sired option :
• Select "ALL" for temperature alarms to
sound when the average temperature of
all probes exceeds the normal temperature
range; Select "Ind" for temperature alarms to
sound when the temperature of an individual
probe exceeds the limits.
• Press the Other Functions button. The criti-
cal alarm limit is displayed, alternating with
the word "
Cr AL"
. Use the adjustment buttons
to set it to the desired value.
11.3.2. Outside Temp. Alarm Offset
The outside temperature alarm offset deter-
mines when an alarm sets off when the room
temperature gets higher than the outside
temperature. This parameter ranges from 0,3
to 20,0°C (0,5°F to 36,0°F).
• Select the
OUTSIDE TEMP./OFFSET
menu.
The current outside temperature is displayed.
The letter "P" is displayed if no probe is con-
nected to the outside temperature input.
• Press the Other Functions button. The out-
side temperature alarm offset flashes on the
display, alternating with the word "
OFSEt".
• Use the adjustment buttons to set it to the
desired value.
9
INTER 2V4SA, rev.02
INTER 2V4SA
4.4. Temperature Probes
The controller is supplied with one tempera-
ture probe connected to input #1. Up to three
additional probes can be connected to the
controller in order to obtain a more accurate
reading of the average room temperature and
a faster reaction time.
I. Connecting the Probes
• Connect additional probes to
inputs # 2, 3 and 4 as shown on
the wiring diagram and then use
dipswitches 3-5 to enable the
proper inputs:
#
OFF
ON
3
Probe 2 disabled
Probe 2 enabled
4
Probe 3 disabled
Probe 3 enabled
5
Probe 4 disabled
Probe 4 enabled
II. Extending the Probes
Probes operate at low voltage and are
isolated from the supply. Be sure that
probe cables remain insulated from all
high voltage sources. In particular, do
not route the probe cables through the
same electrical knockout as other cables.
Do not connect the shield from the probe
cable to a terminal or a ground.
Extending a probe:
Each probe can be ex-
tended up to 500 feet (150 meters).
To extend a probe: Use a shielded cable of
outside diameter between 0.245 and 0.260
in (6.22 and 6.60 mm) (the cable dimensions
should not be under 18 AWG) to ensure the
cable entry is liquid tight.
Do not ground
the shielding.
It is preferable to solder the cable joint to
ensure a proper contact between the two
cables.
ON
OFF
Do not run probe cables next to other
power cables. When crossing over other
cables, cross at 90°.
III. Defective Probes
If a defective probe is detected, the Defective
Probe Pilot Light turns on. The room tempera-
ture shown on the display corresponds to the
average temperature measured by the probes
in working condition.
To identify the defective probe:
• Select the
PROBE TEMP / MIN / MAX
menu.
If the probe connected to input # 1 is not
defective, the letters "
PR1
" are displayed,
alternating with the on/off state of the probe
and the temperature measured by the probe.
If the probe is defective, the letters "
PR1
" are
displayed, alternating with the state of the
probe and the letter "
P
".
• Press the Other Functions button to step
to the following probe.
• Proceed as explained above to make sure
all probes are in working order.
