- Vibration Monitoring
- PLC & I/O Cards
- Industrial Communications
- Automation Accessories
- Controllers & Data Acquisition
- AC Drives
- Isolator & Barrier
- Encoders
- Industrial Computers
- Safety Switches & Guard Locking
- Automation Software
- HMI Displays
- Motor Soft Starters
- CCTV & Security
- Servo Drives
- Robotics
- Pneumatic Cylinders
- Machine Vision
Brand: Chromalox
Chromalox 6140 / 4140 Temperature and Process Controller
Description
Universal-input PID controllers in 1/16 DIN and 1/4 DIN panel sizes
The Chromalox 6140 / 4140 pair are the two panel sizes of the Chromalox 40 Series single-loop temperature and process controller. The 6140 is the compact 48 × 48 mm (1/16 DIN) unit and the 4140 is the 96 × 96 mm (1/4 DIN) unit. Both accept thermocouple, RTD and DC linear signals, run PID or ON/OFF control with heat/cool operation, and show the process value on a large LCD with a front panel sealed to IP65.
Extras include a ramping setpoint programmer, four selectable setpoints, a timer, an energy counter and diagnostics for loop break, heater break and shorted SSR output. The optional C-PWR configuration software lets one engineer program several units and store parameter sets.
Technical specifications
| Parameter | Specification |
|---|---|
| Series | Chromalox 40 Series temperature and process controllers (single loop) |
| Models and size | 6140: 48 × 48 mm (1/16 DIN), depth 80 mm, 0.16 kg. 4140: 96 × 96 mm (1/4 DIN), depth 80 mm, 0.24 kg |
| Main input | Thermocouple, RTD (Pt100, JPT100), DC linear (0…60 mV, 0…1/5/10 V, 0/4…20 mA); infrared sensor input on the 4140 only |
| Thermocouple types | J, K, R, S, T, C, D, B, E, L, L-GOST, U, G, N, Pt20Rh-Pt40Rh |
| Accuracy | Thermocouple: better than ±(0.25 % of reading + 0.1 °C); RTD: better than ±(0.15 % of reading + 1 °C) |
| Sampling time | 60 ms or 120 ms, selectable; digital filter 0.0…20.0 s |
| Remote setpoint and CT | Remote setpoint 0…1 V, 0…10 V or 0/4…20 mA; up to 2 CT inputs (x/50 mA AC, 50/60 Hz) for load monitoring |
| Relay outputs | Up to 4, NO contact, 5 A at 250 VAC (4140: 5 A at 250 VAC or 30 VDC, cos phi = 1); more than 100,000 operations |
| SSR driver, triac, analog | SSR driver up to 2 (24 V ±10 %); 1 triac (75…264 VAC, 1 A); 1 continuous 4…20 mA; 1 retransmission output (0…10 V or 0/4…20 mA) |
| Alarms | Up to 4, assignable to an output: maximum, minimum, symmetric, absolute or relative, memory, loop break (LBA), heater break (HB) |
| Control action | PID, ON/OFF, single action heat or cool, double action heat/cool; constant or optimized cycle time; open/close control of floating motorized valves |
| Programmer | Up to 4 programs and 32 steps (8 steps per program in simplified mode); 4 setpoints selectable from a digital input; 4 events |
| Serial interface | RS485 Modbus RTU, 1200 to 115,200 bit/s, isolated; microUSB configuration port |
| Supply | 100…240 VAC/VDC ±10 %, 50/60 Hz (20…27 VAC/VDC on request); 5 W maximum (6140), 10 W maximum (4140) |
| Ambient conditions | Operating -10 to +55 °C, storage -20 to +70 °C, 20 to 85 % RH non-condensing, altitude up to 2000 m, indoor use |
| Protection and approvals | IP65 front panel; UL, cUL and CE as printed in the Chromalox sheet; EN 61326-1 (EMC) and EN 61010-1 (safety); 3-year warranty |
Reading the 6140 and 4140 model code
Models follow the pattern 6140-C-RR0-00101-1-G, where each field selects one hardware option. The first letter is output 1: R is a 5 A 250 VAC relay, D is an SSR driver output above 10 V and C is a 4…20 mA analog output. The next three characters define outputs 2 to 4. On the 6140 they are R00 (one relay), D00 (one SSR driver), RR0 (two relays), DR0 (one SSR driver and one relay), RT0 (relay and triac), DT0 (SSR driver and triac) or RRR (three relays, 5 A in total).
The 4140 adds RRT, DRT and DRR blocks (three outputs including a triac or two relays). The five-digit options field switches on extra inputs and communication, for example 00101 for one CT input and Modbus RS485, 00030 for three digital inputs, or 11251 on the 4140 for remote setpoint, retransmission, one CT, five digital inputs and RS485. The supply digit is 0 for 20…27 VAC/VDC or 1 for 100…240 VAC, and the closing field is blank or LF where the logic operations function is wanted. Custom builds carry a five-piece minimum on the sheet.
Choosing the 6140 or the 4140
Pick the 6140 where panel space is tight, such as heater control cabinets, small ovens and test rigs, and the 4140 where more inputs and outputs are needed on one controller, up to five outputs, five digital inputs, remote setpoint and an infrared sensor input. A CT input enables the heater break alarm for electric heating loops. For a standalone over-temperature function the Chromalox 50 Series limit controllers are the matching companion, as the datasheet itself notes.
Before ordering confirm the sensor type and range, the output type for the final control element, the supply voltage, whether Modbus RS485 is needed and the panel cut-out. Compare similar panel controllers in the controllers and data acquisition range, for example the JUMO diraTRON 104.
Documents and quotation
The Chromalox 6140/4140 model sheet is attached as the document for this page and carries the full input, output and ordering tables. Seven Star LLC is an independent supplier in Muscat; send the complete model code, quantity and sensor details and we will prepare a quotation. Stock, price and lead time are confirmed at quotation.
Datasheets & Documents
- Datasheet Chromalox 6140/4140 Temperature & Process Controllers model sheet (catalog page, English) Download
Reviews (0)
About brand
Chromalox is an American manufacturer of electric process heating, heat trace and thermal control products. The company was founded in 1917 by Edwin L. Wiegand and, according to its website, is today part of Spirax Group. Its catalog spans immersion and circulation heaters, tubular and strip heaters, heat trace cables and controls, and temperature and power controllers.
Industrial heaters and heat trace
The industrial range covers screw plug and flanged immersion heaters, over-the-side heaters, air and radiant heaters, steam generators and packaged process heating systems. Heat trace products include constant wattage, self-regulating and mineral-insulated cables, with thermostats, controllers and connection kits for freeze protection and process temperature maintenance.
Controls and requesting a quote
Controllers run from single-loop temperature and process controllers to SCR power controllers and heat trace controllers. Seven Star LLC, an independent supplier in Muscat, lists selected Chromalox models for projects in Oman and the GCC. Send the full model code, voltage, kW or wattage and the fluid or application, and we will prepare a quotation from the Chromalox data sheet.
Related products
Frequently Asked Questions
What panel sizes do the Chromalox 6140 and 4140 have?
The 6140 is 48 x 48 mm (1/16 DIN) and the 4140 is 96 x 96 mm (1/4 DIN); both are 80 mm deep with an IP65 front panel.
Which input signals do these controllers accept?
Thermocouples (J, K, R, S, T, C, D, B, E, L, U, G, N and others), Pt100 and JPT100 RTDs, and DC linear signals; the 4140 also has an infrared sensor input.
How many outputs can be fitted?
The 6140 offers up to four outputs and the 4140 up to five, drawn from relay, SSR driver, triac and 4...20 mA outputs depending on the model code.
Do they support Modbus communication?
Yes. An RS485 Modbus RTU interface is selected in the options field of the model code, and a microUSB port is provided for configuration.
What supply voltage is required?
100...240 VAC/VDC is standard, and 20...27 VAC/VDC is available on request through the supply digit of the model code.
Reviews
There are no reviews yet.