The THCD-401 is a microprocessor-based four channel power supply and controller that can operate mass flow meters, mass flow controllers, and pressure transducers as well as vacuum gauges. It also provides stable output voltage levels to power these devices.
The instrument accurately measures and displays output from analog transducers. In addition, it can generate analog command signals to mass flow controllers. The bright, color LCD display is easy to view and understand; with a quick glance, the user can see each channel's status.
FEATURES
- Up to 6 Digit Numeric Display
- 0-5 VDC, 0-10 VDC, or 4-20 mA
- 16 bit A/D Resolution
- Accuracy (A/D) 0.02% of Reading + 0.01% of FS
- Bright, Full Color, LCD Display
- Ethernet & USB (Includes Internal Webserver)
- Totalizer
- Ratio Control
- Convenient Valve Override Buttons
- Free DisplayX Control & Data Logging Software
- Bench Top or Panel Mount
- CE & RoHS Compliance
APPLICATIONS
- Operate Mass Flow Controllers and Meters
- Gas Blending
- Monitor and Record Vacuum & Pressure
BENEFITS
- Easy to Configure & Operate
- Reduces Wiring/Integration Challenges
- Highly Visible Display
- Flexible Interface with Setpoint & Digital Command
Videos
Files
| Attachment | Size |
|---|---|
 THCD-401 - Brochure | 1.25 MB |
| THCD-401 - Manual | 1.34 MB |
News, events, promotions, webinars
The THCD-401 Power Supply & Display features an intuitive front panel. A capacitance-touch ring control is used to quickly enter commands to mass flow controllers.
It's as easy as 1,2,3.
- Select the channel using one of the four buttons on the far left of the THCD-401.
- Use the left and right arrows at the bottom of the THCD-401 to move the blue cursor and select the digit to be adjusted.
- Dial the setpoint using the ring.
The buttons at the bottom of the front panel enable quick control of the corresponding flow controllers. For example, the user can quickly shut the valve of a mass flow controller by simply selecting the channel, and then pressing "Close". Immediately, bright blue "CLOSED" text appears on the screen to notify the user of the closed status.
The MENU button gives the user access to many setup features. However, setup is faster and easier via the instrument's internal webserver that can be accessed with the Ethernet port on the back panel.
The rear panel gives the user access to many convenient ways to interface to the THCD-401. In addition to the Ethernet port, there is also a USB port for serial communication. A programmable alarm output (mechanical changeover relay) can be used for process control. The "Interface" connector gives the user access to analog outputs from each of the individual channels.
Technical Features
Number of Channels | Four |
DC Input Signal | ±10 Volt or 4-20 mA (Factory Option) |
Error | ± (0.02% of reading + 0.01% of full scale) |
Impedance | > 1 MΩ (Voltage Input) |
DC Setpoint Output | 0—10 VDC (into > 10 kΩ) or 4-20 mA (Factory Option) |
Error | ± (0.03% of reading + 0.02% of full scale) |
Override Close | -0.4 to –0.2 VDC, Typ. –0.25 VDC |
Override Open | 6.5 to 8.0 VDC, Typ. 7.0 @ 5 VDC full scale OR |
± 15 VDC @ 300 mA max / channel |
+24 VDC @ 350 mA max / channel |
Total transducer load not to exceed 40 Watt |
Line Voltage | 90—250 VAC |
Line Frequency | 50—60 Hz |
Consumption | < 150 VA |
Protection | 1.6A anti-surge fuse (20 x 5 mm) |
Mains Connector | IEC 320 |
Operating Temperature | 5°C to 60°C (41°F to 140°F) |
Storage Temperature | -20°C to 70°C (-4°F to 158°F) |
Maximum Relative Humidity | 95%RH at 50°C (non-condensing) |
Warm up Time (to full accuracy) | 20 min (With unit already stabilized at ambient temperature) |
Housing Dimensions | 3.23” H x 6.65” W x 8.14” D (82 mm x 169 mm x 206 mm) |
Weight | 4.08 lbs. (1.85 kg) |
Panel Cut Out | 2U x ½ 19” Rack |
Alarm Output | Mechanical changeover relay (max 50 VDC) |
Display Range | 0 to 999999 (6 character, decimal counts as a character) |
Transducer Connectors (4) | 15-pin “D” (Female on THCD-401) |
Serial | USB C (USB 2.0 over USB C connector) |
Ethernet (TCP/IP) | Configurable static IP address and subnet mask Single host stack. |