9
Operating instructions CellaTemp PKx 6x
EN
5 Function
The pyrometer measures the temperature without contact to the target�
The infrared sensor is equipped with an analogue output and two open collector
outputs� The instrument‘s display panel shows the measured temperature�
• Analogue output 0/4 - 20 mA
• OUT1: Switching signal dependent on the set temperature
• OUT2: Switching threshold dirt alert, sync-pulse or inner device temperature
5.1 Analogue output
The pyrometer is equipped with an analogue output 0/4���20 mA� The maximum
load is 500 Ω. The output current is linear to the measured temperature. The
source must be defined before the current output can be used�
The following sources are available:
• Two-colour mode: [
Ao
] → [
Ao.S
] =
QUot.
• One-colour mode: [
Ao
] → [
Ao.S
]=
SpEc.
Within the overall measuring range, the required measuring range can be set to
°C or °F using parameter [
Ao. _
] (scale beginning) and parameter [
Ao. ~
]
(scale end)� There is also the possibility, to switch OUT2 between 0 - 20 mA and
4 - 20 mA�
Scale beginning [
Ao
] → [
Ao. _
]
Scale end [
Ao
] → [
Ao. ~
]
Change 0/4 - 20 mA [
Ao
] → [
Ao.04
] =
0-20
/
4-20
First, the beginning of the scale [
Ao. _
] in °C or F is entered, then the end of
the scale [
Ao. ~
]� By changing [
Ao. _
] also changes [
Ao. ~
], so that the
range remains the same� If [
Ao. _
] is increased so far, that the range can not be
adhered to, as [
Ao. ~
] would otherwise exceed the maximum, [
Ao. ~
] is kept
at its maximum� If [
Ao. _
] is then reduced again, [
Ao. ~
] is also immediately
reduced again� The minimum span is given in the technical data of the respective
device�