Roline L Series: Humidity Temperature Transmitter

Specifications | Diagrams | Field Service | Accessories

Roline L Series Humidity Temperature Transmitter is designed for HVAC applications that require low maintenance, stable sensors at a moderate price.

Roline,L,Series,Humidity,Temperature,Transmitter

Well proven Rotronic Hygromer humidity sensor
Measuring range 0...100 %RH and 0...50°C or 0...100°F
± 3.0% RH / ± 0.5°C (± 0.9°F) accuracy
Long term stability of better than 1% RH per year
Potentiometer free - digital calibration
On-site loop validation and calibration with HygroPalm 3 calibrator
Duct, wall and space mount configurations
2-wire loop-powered or 3-wire versions
Available as RH & temperature, RH only or temperature only transmitter

PROBE	L12	L13
Humidity sensor	Rotronic Hygromer ™ C94 thin film capacitive
Temperature sensor	Pt100 RTD
Operating limits	0...100%RH -40...60°C / -40...140°F
Repeatability	better than 0.5%RH and 0.1°C/°F
Humidity sensor stability	better than 1% RH per year
Sensor protection	wall and duct models: PVC foam filter space mount models: n/a
Probe material	wall and duct models: Polycarbonate space mount models: n/a
TRANSMITTER	L12	L13
Circuit type	2-wire loop-powered	3-wire
Signal type	4...20 mA	0...20 mA, 4...20 mA 0...1V, 0...5V, 0...10V
Measuring range	0...100% RH 0...50°C or 0...100°F
Accuracy at 23°C	± 3.0% RH / ± 0.5°C (± 0.9°F)
Operating limits	0...99% RH non condensing -40...60°C (-40...140°F)
Power supply	18...28 VDC, 18 + 0.02 x load 2 x 20 mA	18...35 VDC (50 mA) or 12...24 VAC
Maximum load for current outputs	250 Ohm
Minimum load for voltage outputs	n/a	1000 Ohm
Electrical connections	wall and duct models: cable grip and terminals space mount model: terminals
Housing material	ABS
Protection grade	wall and duct models: IP65/NEMA4 space mount model: IP52 / NEMA5
Weight	200 g / 4.2 oz

L13 3-wire
Current outputs	Voltage outputs

L12 2-wire loop-powered
	Note: 1 and 3 (+) are connected

Service cable ACRLXB5

Each Roline L series transmitter features a service connector that can be accessed without disturbing the output signals.

Service cableACRLXB5 is used to connect the service connector of the transmitter to probe input 2 of the HygroPalm 3 portable indicator.

Field Calibration

Using the HygroPalm 3 indicator and the ACRLXB5 service cable, the following can be done:

a) 1-point adjustment of the transmitter against a reference probe connected to the HygroPalm

b) single- or multi-point adjustment against a reference environment (requires a humidity generator). When no humidity generator is available, ROTRONIC offers easy-to-use certified humidity standards to generate known humidity values. See below for details.

Validation of the signal loop

By displaying the signals of the transmitter with the HygroPalm 3, the entire measuring loop can be validated: probe, transmitter, wiring and central processing unit.

Certified Humidity Standards: if you do not have access to a humidity generator, the Rotronic humidity standards offer a reliable and convenient way to generate a reference humidity condition during probe calibration. The Rotronic standards are shipped with an internationally accepted certificate, meeting in full the requirements of quality systems such as ISO 9000. The standards are available in boxes of 5 glass ampoules of the same value, and can be stored indefinitely. Standards in the range of 5 to 95 %RH are non-saturated aqueous salt solutions. The 0 %RH humidity standard is made of small granules of a highly porous ceramic. A Material Safety Data Sheet is available for each standard.

ER-15 calibration device: this is a small airtight container that fits on the probe and seals around the humidity sensor. During calibration, a known reference humidity is produced inside the calibration device by means of a humidity standard.

Accessories
HygroPalm 3	HygroPalm 3, field calibrator
ACRLXB5	Cable: service connector Roline L to HygroPalm 3 for field calibration and loop validation.
ER-15	Calibration device
EAXX-SCS	Certified humidity standards (5 per box) XX = 00. 05, 10, 20, 35, 50, 65, 80, 95%RH