Mindray BS-120 Service Manual

4 Units Description
4-39
Figure 4-44 Dismounting Power Supply Unit
The dismounting steps are shown as follows.
1. Remove the rear panel.
2. Unplug all connection cables.
3. Remove the four M4x12 cross pan head screws and then pull out the power
supply module from the framework.
The mouting steps are shown as follows.
1. Push the power supply module into the framework and insert the power box
press under the press plate.
2. Fix the power supply module using four M4x12 cross pan head screws.
3. Install the rear panel.
4. Plug all connection cables.
4.8 ISE Unit (Optional)
4.8.1 Introduction
The ISE module is optional for fully-automated chemistry analyzers and designed to
measure the concentration of K+, Na+, Cl- and Li+ in serum, plasma and diluted urine.
The volume needed for testing is 70µl in the serum or plasma sample and is 140µl in
the diluted urine sample. The dilution ratio of the urine sample is 1:10 (1 part of urine
sample and 9 parts of diluent)
4.8.2 Components of ISE Unit
The ISE unit consists of the ISE module, pump module and reagent module. See Table
4-1 and Figure 4-45.
Table 4-1 Components of ISE Unit
NAME DESCRIPTION
ISE module
The ISE module includes five electrodes (Li+, Na+, K+,
Cl- and Reference). Samples are dispensed via the
sample entry port on the top of the ISE module and then
measured.

Mindray BS-120 Specifications

General

Throughput	120 tests/hour
Display	LCD touch screen
Reaction Temperature	37°C
Light Source	Halogen lamp
Photometric Range	0-3.0 Abs
Type	Bench-top, discrete, random access
Sample Type	Serum, plasma, urine
Connectivity	RS-232, USB
Analysis Method	Photometric
Sample Volume	2-35 µL
Reaction Volume	180-500 µL
Wavelengths	340, 405, 450, 505, 546, 578, 630, 700 nm
Control	Internal quality control, calibrator
Cleaning	Automatic cleaning system
Measurement Principle	Absorbance
Power Supply	AC 100-240V, 50/60 Hz
Operating Environment	Temperature 15-30°C, humidity 35-85% RH