The 623H11TBE belongs to the MKS Instruments 623H series of 600 Series Baratron capacitance manometers. This model measures absolute pressure with high precision and stability. Its 10 Torr full scale range suits vacuum processes that demand reliable, repeatable readings. The unheated ambient sensor design keeps installation simple and cost-effective.
This manometer delivers 0.25% of reading accuracy, which includes non-linearity, hysteresis, and non-repeatability. Resolution reaches 0.001% of full scale. Moreover, the analog output of 0 to +10 VDC feeds into control systems with input impedance above 10 kOhm. Two independent SPDT trip point relays allow users to set process alarms or interlocks across 0.1% to 100% of full scale.
The 623H11TBE provides absolute pressure measurement across a 10 Torr span. Accuracy stays within 0.25% of Reading under specified conditions. Resolution is 0.001% of Full Scale, which supports fine pressure monitoring. A warm-up time of 30 minutes ensures stable operation after power-on.
Power requirements are +/-15 VDC (+/-5%) at 75 mA. The analog output delivers 0 to +10 VDC into loads above 10 kOhm. A terminal block connector with 5-post and 8-post strips handles all wiring. The two trip point relays are SPDT, rated 1 A at 30 VDC or 0.5 A at 30 VAC resistive. Trip relay source impedance is 12.5 kOhm maximum.
The overpressure limit is 45 psia (310 kPa). Internal volume is a compact 6.3 cc. The fitting is an 8 VCR female type. Wetted materials include Incoloy and Inconel for corrosion resistance and vacuum compatibility.
The unit measures 3.00 inches (76.2 mm) in diameter with a body height of 3.75 inches (95.3 mm). The fitting stem extends 2.44 inches (61.9 mm). Operating temperature ranges from 0 to 50 degC. Zero temperature coefficient is 0.005% FS/degC, while span temperature coefficient is 0.04% of Reading/degC. The device carries CE compliance.
First, mount the 623H11TBE using the 8 VCR female fitting on a compatible vacuum flange. Ensure the fitting surfaces are clean and free of debris. Next, connect the terminal block wiring according to the pinout diagram. Power the unit with +/-15 VDC and allow 30 minutes warm-up. Besides, verify the analog output with a calibrated voltmeter. Finally, adjust the two trip point relays using the potentiometers to the desired threshold between 0.1% and 100% FS.
Additionally, keep the sensor at ambient temperature and avoid direct heat sources. The unheated design means no thermal isolation is required. However, protect the unit from overpressure beyond 45 psia to prevent sensor damage. For process integration, route the relay outputs to your alarm panel or PLC input module.
1 x MKS 623H11TBE Capacitance Manometer
1 x Terminal Block Connector Set
1 x Installation Guide
Shipping via Fedex, UPS, DHL.
Q1: What is the full scale range of the 623H11TBE?
A: The 623H11TBE offers a 10 Torr full scale absolute pressure range.
Q2: Does this model include trip point relays?
A: Yes, it has two user-adjustable SPDT trip point relays from 0.1% to 100% FS.
Q3: What power supply does the 623H11TBE require?
A: It needs +/-15 VDC (+/-5%) at 75 mA.
Q4: What fitting type does the sensor use?
A: The unit uses an 8 VCR female fitting with Incoloy and Inconel wetted materials.
Q5: Is the 623H11TBE heated?
A: No, this model is unheated and operates at ambient temperature from 0 to 50 degC.
| Brand Name | |
| Model No. | 623H11TBE |
| Product Type | Unheated Absolute Baratron Capacitance Manometer |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
