4~20mA Linear current output Temperature Controller - C18 Series

High Performance Industrial Temperature Controllers

SUMMARY

1.1 Main feature

• Advanced operation method leads to easy learning and simple manipulation; and the compatibility of operation is available among the instruments differ in the model and function.
• Provide nearly all of the functions contained by most similar industry automatic controller in the world, and the mature technique made it generally used in various kinds of industrial fields.
• Provide various models that can meet different needs either in the functions or price.
• With power supply of 85-264VAC or 24VDC and various installation dimensions for users to choose.
• Adopt digital calibration system for measurement input with measurement input accuracy less then 0.2% F.S., non-linear calibration for common sensors is available in the instrument.
• Adopt advanced Temperature Controller artificial intelligence control algorithm, no overshoot and with the function of auto tuning and self-adaptation.
• Adopt advanced modular structure, equipped with plentiful output specifications, and can satisfy the needs of various applications. This makes it possible to shorten the date of delivery and convenience the maintenance of the instrument

1.2 Model definition

Advanced modular hardware design is utilized for Temperature Controller series instrument. The instrument with enhanced lateral plate can be equipped with maximum modules of 5.There are more than ten kinds of modules, some of which are double-duty module. Modules of special function can be customized on request.

The basal Temperature Controller instrument has provided many functions enough to meet different requirements asked by users. In order to expand its application bound, an optional software function is provided. The options make the instrument to be able to meet some users' special requirement. There is another manual about these options for those users with special requirement

The type number of Temperature Controller series instrument is made up of 10 parts, for example:

It shows that the basal function of this instrument is C18 type, front panel dimension is 96×96mm, main output is linear current output without isolation, alarm 1 is relay contact output module, alarm 2 is not installed in, a RS485 communication interface with photoelectric isolation is installed. It is equipped with enhanced lateral plate; auxiliary output is relay contact output module. Optional input type (F2 radiation type pyrometer) and No.3 software function are also available

Specification's:
Input type: (Either of below specifications can be used selectively in the same instrument)
Thermocouple: K, S, E, R, J, T, B, N
Resistance temperature Detector: PT100, Cu50.
DC Voltage: 0_5V, 1_5V, 0_1V, 0_100mV, 0_20mV, etc.
DC current (external shunt resist needed): 0_10mA, 1_20mA, 4_20mA, etc.
Optional: Apart from the above-mentioned Input type, additional type can be provided upon request.
Instrument Input range
K(-50--+1300C), S(-50--+1700C), R(-50--+1650C), T(-200--+350C)
E(0~800C), J(0--1000C), B(0--1800C), N(0~1300C)
PT100(-200--+600C), Cu50(-50--+150C)
Linear Input: -1999--+9999 defined by user
Measurement accuracy
0.2%FS: RTD, linear voltage, linear current and input with ice point compensation or Cu50 copper
Compensation
0.2%FS± 0.2C: Thermocouple input with internal automatic compensation
Response time ≤ 0.5s ( when dL=0)
Note: For thermocouple B, the measurement accuracy of plusmn; 0.2% FS can be guaranteed when input Range is between 600--1800C, and not guaranteed when input range is between 0--600C
Control mode:
On-off control mode (deadband adjustable)
Intelligence control, including fuzzy logic PID control and advanced control algorithm with
The function of parameter auto tuning (MPT)
Output mode (modular)
Relay contact discrete output (NO+NC): 264VAC/1A or 30VDC/1A
BCR NO contact discrete output (NO+NC): 85_ 264VAC/0.2A (continuous), 2A (20mS
Instantaneous, repeat period≥ 5s)
SSR Voltage output: 12VDC/30mA (used to drive SSR).
Linear current output: 0_ 10mA, 4_ 20mA (Output voltage greater than 11V)

Alarm function: upper limit, low limit, positive deviation and negative deviation, selectable using parameters.

Alarm output: 2 modular output.

Manual function: AUTO/MAN bumpless transfer (C18 series only)

Power supply voltage rating: 85-264VAC/50-60Hz

Power consumption: ≤5W Ambient temperature: 0~50 degree C

Front panel dimension: 96X96mm, 160X80mm, 80X160mm, 48X96mm, 96X48mm

Panel cutout dimension: 92X92mm, 152X76mm, 76X152mm, 45X92mm, 92X45mm

Parameter Setting Flow Chart:

Select reference junction compensation mode using different wiring mode

Temperature compensation is needed at reference junction for thermocouple input. Temperature Controller instrument can supply automatic compensation through measurement of surrounding temperature. But because error exist in measurement and instrument itself generate heat (The temperature of wiring terminals of the instrument elevate synchronously), fairly great errors is produced in case of automatic compensation mode. We supply selective compensation modes with high precision for user in the application in which high temperature measurement precision is needed. Measurement accuracy of Temperature Controller series instrument can be up to 0.2%F.S., but this value doesn't include reference junction compensation error

FRONT PANEL AND OPERATION

Details photo of temperature controller: