TELEVAC B2A User manual

The Fredericks Company
B2A Portable Thermocouple Controller
Instruction Manual
The Fredericks Company - Televac
2400 Philmont Avenue
Huntingdon Valley, PA 19006
web: www.frederickscompany.com
email: [email protected]
tel: [phone]
fax: [phone]

CONTENTS LIST OF FIGURES
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Operating Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
List of Tables
1 Operating Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Controller, Cable, and Sensor Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
List of Figures
1 B2A Portable Dimensional Drawing (inches) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
email: [e-mail] tel: [phone] web: frederickscompany.com b2ap_im rev - 1 of 6

1 INTRODUCTION
1 Introduction
1.1 Disclaimer
All information in this manual is subject to change without notice. The Fredericks Company assumes
no responsibility for inaccuracies in product specifications or any liability arising from product use.
Please contact Televac at [email protected] or call 215-947-2500 with comments or questions.
1.2 Description
The B2A Portable is a thermocouple vacuum sensor controller with a range of 1×10−3Torr to 20 Torr.
It utilizes a Televac thermocouple vacuum sensor, part number 2-2100-10 or 2-2126-0YY. It has an
easy-to-read analog display that indicates pressure in units of mTorr.
1.3 Operating Specifications
Table 1: Operating Specifications
Operating Range 1×10−3to 20 Torr
Communications N/A
Programmable Set Points N/A
Analog Output N/A
Supply Voltage for Charging 90 V to 135 V AC, 60 Hz
Calibration Medium Dry air or nitrogen
Overpressure Sensor-dependent
Battery Life 12 hours
Charging Time 15 hours
Operating Temperature 0◦C to 50◦C
Storage Temperature −20◦C to 60◦C
Bakeout Temperature Sensor-dependent
Response Time ≤1second
Accuracy
1 mTorr to 10 mTorr ±1mTorr
10 mTorr to 500 mTorr ±10%
500 mTorr to 1 Torr ±20%
Display Readable Distance 1 m (3 feet)
email: [e-mail] tel: [phone] web: frederickscompany.com b2ap_im rev - 2 of 6

1.4 Safety Information 1 INTRODUCTION
1.4 Safety Information
START BY READING THESE IMPORTANT
SAFETY INSTRUCTIONS AND NOTES
In these instructions the word “product” refers to the B2A Portable and all of its approved parts and
accessories. NOTE: These instructions do not and cannot provide for every contingency that may arise
in connection with the installation, operation, or maintenance of this product. Should you require fur-
ther assistance, please contact Televac at the email address found in the footer of this manual.
This product has been designed and tested to offer reasonably safe service provided in it is installed,
operated and serviced in strict accordance with these safety instructions.
These safety precautions must be observed during all phases of operation, installation, and service
of this product. Failure to comply with these precautions or with specific warnings elsewhere in this
manual violates safety standards of design, manufacture, and intended use of the instrument. Televac
disclaims all liability for the customer’s failure to comply with these requirements.
 READ instructions – Read all safety and operating instructions before operating the product.
 RETAIN instructions – Retain the Safety and Operating Instructions for future reference.
 HEED warnings – Adhere to all warnings on the product and in the operating instructions.
 FOLLOW instructions – Follow all operating and maintenance instructions.
 ACCESSORIES – Do not use accessories not recommended in this manual as they may require a
technician to restore the product to its normal operation.
The B2A Portable qualifies as a Safety Extra-Low Voltage (SELV) device. As such, it represents little to
no hazard concerning electrical shock or burns.
Do not substitute parts or modify instrument. Because of the danger on introducing addi-
tional hazards, do not install substitute parts or perform any unauthorized modifications
to the product. Return the product to Televac for service and repair to ensure that safety
features are maintained. Do not use this product if it has unauthorized modifications
email: [e-mail] tel: [phone] web: frederickscompany.com b2ap_im rev - 3 of 6

1.5 Dimensions 1 INTRODUCTION
1.5 Dimensions
Figure 1: B2A Portable Dimensional Drawing (inches)
email: [e-mail] tel: [phone] web: frederickscompany.com b2ap_im rev - 4 of 6

2 SETUP
2 Setup
2.1 Installation
Each B2A Portable is designed to be used in conjunction with a 2A Thermocouple sensor. The 2A
sensor can be mounted in any orientation. The sensor should be mounted close to the area where
vacuum measurement is desired. Each 2A sensor has a key that only allows the sensor end of the
B2A Portable cable to mate with the sensor in the proper orientation. Rotate the sensor end of the
B2A Portable cable until the correct alignment is obtained and the B2A Portable cable is able to slide
onto the 2A sensor. Connect the RJ14 end of the B2A Portable cable into the port on the front of the
B2A Portable. To take a reading using the B2A Portable, turn the left know on the front of the unit to
the "READ" position. When done taking a reading, turn the knob to the "OFF" position.
Try to avoid connecting the 2A sensor to the vacuum chamber by long or narrow piping as this may
affect the accuracy and response time of the unit. Avoid mounting the unit near a heater within the
chamber as this may affect the measurement accuracy. Excessive vibration of the sensor may affect
accuracy and decrease the life of the sensor. Exposure to oils and other contaminants will decrease
the accuracy and decrease the life of the sensor. Do not expose the sensor to corrosive gases.
2.2 Calibration
The B2A Portable controller provides a calibration adjustment to maximize the accuracy of each sen-
sor. The adjustment should be set at 1 mTorr. Maximum accuracy will utilize a 2A sensor and a
NIST traceable reference gauge co-located on a vacuum chamber. A controlled leak of dry nitrogen
is necessary for calibration. All B2A Portable controllers purchased with a 2A sensor will be factory
calibrated and there is no need for adjustment.
For calibration, pump the vacuum chamber down to below 1×10−4Torr. Using the leak control
on the vacuum system, adjust the pressure in the chamber until the reference gauge reads 1 mTorr.
Then adjust the left knob on the front of the unit to the "CAL" position. Then adjust the right knob
on the front of the unit until the unit reads 1 mTorr. Change the left knob to OFF or READ to resume
normal operation.
2.3 Charging
The B2A Portable is equipped with a NiCd rechargeable battery. The AC power cable is not necessary
for operating the unit. The battery provides up to 12 hours of use of the unit between charges. The
indicator light, located between the two knobs on the front face of the unit, will turn when the unit
has less than two hours of battery power remaining.
To charge the unit, connect the AC power cable in the rear of the unit and adjust the left knob on
the front of the unit to the "CHG" position. In this position, the unit will charge. Note that the unit only
charges when the knob is in that position. To ensure a full charge, allow the unit 15 hours to charge.
email: [e-mail] tel: [phone] web: frederickscompany.com b2ap_im rev - 5 of 6

3 PART NUMBERS
3 Part Numbers
Table 2: Controller, Cable, and Sensor Part Numbers
B2A Portable Controller 2-3001-100
2A Sensor 1/8” NPT Nickel-Plated Brass 2-2100-10
2A Sensor Stainless Steel 1/8” NPT 2-2126-001
2A Sensor Stainless Steel NW16 (DN16 ISO-KF) 2-2126-030
2A Sensor Stainless Steel NW25 (DN25 ISO-KF) 2-2126-031
2A Sensor Stainless Steel 8-VCO Male 2-2126-040
2A Sensor Stainless Steel 8-VCO Female 2-2126-041
2A Sensor Stainless Steel 8-VCR Male 2-2126-042
2A Sensor Stainless Steel 8-VCR Female 2-2126-043
2A Sensor Stainless Steel 4-VCR Male 2-2126-044
2A Sensor Stainless Steel 4-VCR Female 2-2126-045
2A Sensor Stainless Steel 1.33” CF (DN16 ISO-CF-F) 2-2126-050
2A Sensor Stainless Steel 2.75” CF (DN40 ISO-CF-F) 2-2126-052
3 ft Cable 2-9800-076
10 ft Cable 2-9800-077
20 ft Cable 2-9800-078
35 ft Cable 2-9800-079
50 ft Cable 2-9800-080
35 ft Cable 2-9800-079
2A Mini Coiled 10 ft Cable 2-9800-082
2A Mini Flat 10 ft Cable 2-2100-084
NASA 2A Miniature Sensor 2-2100-31
Contact Fredericks Company for further sensor flange types and cable lengths.
email: [e-mail] tel: [phone] web: frederickscompany.com b2ap_im rev - 6 of 6