
THE ION SERIES
Practical Weighing
for Micrograms
Bring condence to your lab
with the BM series of
microbalances, with a
capacity from 520 g - 1 μg
handle even trace quantities
of valuable or degradable
substances with condence.
Key Feature
• Built-in integrated fan-less ionizer to prevent static
• Enhanced performance due SHS weighing
technology
Our fan-less, integrated, direct current ionizer
eliminates static and comes standard on all BM
models. The automatic response adjustment
function is powered by the embedded sensors
to deliver fast and stable results to compensate
for environmental variables:
• Temperature
• Humidity
• Vibration
• Atmosphere
• One-touch, full digital internal calibration with auto
self-cal (ASC)
• Dual draft rings to reduce draft interferences
• High sensitivity with six decimal place microgram,
readability 0.001 mg (1μg)
2 ION Series

The Ion Series – Practical Weighing for Micrograms
Anti-static breeze break
Transparent metal coating
on glass minimizes
the effects of static
The green LED
is lit while the
ionizer is on.
Removable
separation plate
to weigh taller
objects
Bright LCD
High contrast backlit
LCD provides
excellent readability
Internal Calibration
Automatic Self Calibration:
Auto-calibration when
environmental variable
is detected or one push
Draft Shields
BM-20 and BM-22
have innovative
double ring draft
shields
ION
Neutralize static:
Fan-less, direct
current ionizer
neutralizes
charged samples
MODE
12 Weighing Options: g, mg, oz, ozt, ct, dwt, grain,
momme, tael, tola, messghal, pieces and percent
Interlocking Doors
Work efciently, open either door from the
opposite side, or open both doors with one hand.
ION Series 3

Features and Accessories
1.
2.
Charged object appears
heavier because static
changes the value as it
dissipates into the air or pan
Due to static attraction,
the charged object will
cause the value to shift
negative.
Static control
Removing static electricity is critical to
accurate weighing. The built-in ionizer
improves weighing accuracy by eliminating
static. The fan-less direct current (DC)
ionizer neutralizes static without the risk
of compromising your sample— even ne
powders.
This standard feature is easy to use, simply
hold the sample in the upper neutralizing
chamber for a few seconds before weighing.
Data Logger
• AD-1688 Data Logger stores up to 5000
weighing results with
• Date
• Time
• Temperature
• Humidity
• Atmospheric pressure
• WIN-Ct software
Aluminum pans
ø50 mm
ø95 mm
AX-BM-032 microtube holder
Weighing Pans
• Filter weighing pans, to minimize drafts
• Holders for micro-centrifuge tubes
• 3 disposable aluminum pans: 8, 12 & 15 mm diameter
• GLP/GMP/GCP/ISO best practice
compliance
Standard Ports
RS-232 and USB ports are standard
on all BM Series balances
4 ION Series

Features and Accessories
AD-1676
AD-1687
Accessories
Product code Description
AD-1676 External draft enclosure
AD-1653 Density determination kit
BT-3135
BT-3136
AD-1682 Rechargeable battery unit
AD-1687 Weighing environment logger
AD-1689
AD-1691
AX-BM-031 In-use covers (5 pcs)
AX-BM-032
Katsota Balance Table
24x35x32
Katsota Tabletop Slab
20x15x3
Long Rubber tipped Tweezers
for calibration weight
Weighing environment
analyzer
Microtube holder for the
BM-5/5D/20/22
*1
Option BM-14
Product code Description
AX-HOLDER-SET Sample cup holder set
Round aluminum analytical
AX-ROUND-PAN-L
AX-ROUND-PAN-M
AX-ROUND-PAN-S
AD-1192 Compact dot matrix printer
AD-8121B Multi functional Printer
AD-8920A Universal remote display
AD-8922A Remote controller
TB-648 AC Adapter (120V/220V)
pans (Ø15 mm, 0.8 ml, 100
pcs)
Round aluminum analytical
pans (Ø12 mm, 0.3 ml, 100
pcs)
Round aluminum analytical
pans (Ø8 mm, 0.05 ml, 100
pcs)
AX-BM-033 Dust cover for storage
AX-BM-034
AX-BM-035
AX-BM-NEEDLESET
1 BM-5/5D microtube holder is heavier than the standard weighing pan by approx. 2 g, leaving only approx. 3 g for weighing sample.
2 BM-08 and Quick USB (standard) cannot be used at the same time.
3 Cannot be used with the BM-5/5D
Microtube holder for the
BM-252/200/300/500
Slide breeze break (for the
BM-5/5D/20/22 only)
Discharge electrode units for
the ionizer (a set of 4 pcs)
Standard functions
12
3
9
6
Date & Time
Optimizing
Unit Weights
Static
Eliminator
Memory
Function
User Access
Control
SmartRange
BM-5D/22
Options
Product code Description
BM-08
BM-14 Pipette accessory testing kit
Optional
Ethernet interface with
WinCT-Plus software
*2
ION Series 5
*3

Specications
Model BM-5 BM-5D BM-20 BM-22 BM-252 BM-200 BM-300 BM-500
Weighing capacity 5.2 g 2.1 / 5.2 g*
Readability 0.001 mg 0.001/0.01 mg 0.001 mg 0.001 / 0.01 mg 0.01 mg 0.1 mg
Repeatability
(Standard Deviation)
Linearity ±0.010 mg
Minimum weight (typical)
Stabilization time
(set to FAST)
Sensitivity drift
(10 °C to 30 °C)
Operating temperature 5 °C to 40 °C (41 °F to 104 °F), 85% RH or less (non-condensation)
Display refresh rate 5 times / sec or 10 times / sec
Measurement Units
(Display mode)
Counting mode Minimum unit mass = 0.1 mg / Number of samples = 10, 25, 50 or 100 pieces
Percent mode Minimum 100% ref. mass = 10.0 mg / Minimum 100% display = 0.01%, 0.1%, 1% (depends on the reference mass stored)
Internal Memory 200 sets weighing data / 100 sets with date & time / 50 sets of calibration data
External Data Logger Store up to 5,000 weighing results with date & time to AD-1688 (standard)
Data Output
Standard interface RS-232C, Quick USB, External key plug for optional foot switch (SW:128)
Internal calibration Motor-driven internal calibration
External calibration
masses (g)
Ionizer electrode pin life ~10,000 hours of continuous use. (User replaceable)
Weighing pan diameter 25 mm (50 mm, 95 mm for weighing lter optional) 90 mm
Power consumption ~30 VA (supplied by the AC adapter)
External dimensions /
Weight
Standard accessories
1 Smart range function: The minimum weighing value switches to 0.01 mg automatically when the display value exceeds 5.1 g but returns to 0.001 mg by pressing the RE-ZERO (tare) key.
2 Repeatability using a 1gram weight within the weighing capacity
3 Pursuant to the United States Pharmacopoeia (USP), Chapter 41
4 Can be added upon request
0.0012 mg*20.01 / 0.04 mg*20.0025 mg
±0.010 /
±0.02 mg
*3
2.0 mg 5.0 mg 3.0 mg 5.0 mg 20 mg 120 mg
~10 sec ~8 /10 sec ~10 sec ~8 /10 sec ~8 sec ~3.5 sec.
g, mg, oz, ozt, ct, momme, dwt, GN, tael*4, tola*4, messghal, pieces (counting mode), % (percent mode), Specic gravity
s/n, balance identication number, data, time of calibration, mass used, and space for signature.
5, 2, 1 20, 10, 5, 2, 1
690(W) × 860(D) × 630(H) mm
24kg (include AD-1676)
AD-1676 tabletop draft enclosure (BM5/5D only), Gold coated
pans (Ø50 mm and Ø95 mm) for weighing lters, Aluminum
pans 3 sizes - 10 each, AX-BM-032 microtube holder,
AD-1688 weighing data logger, AD-1689 tweezers,
AX-BM-033 dust storage cover
1
22 g 5.1 g / 22 g*
0.004*2 /
*2
0.01 mg
±0.010 mg
±2 ppm / °C ( When automatic self calibration is not used )
GLP / GMP / GCP / ISO compliant. Outputs: balance manufacturer, model,
±0.010 /
±0.02 mg
1
250 g 220 g 320 g 520 g
0.03 mg
(for 100 g)
±0.010 mg ±0.2 mg ±0.3 mg ±0.5 mg
200, 100, 50,
20, 10
259 (W) x 466 (D) x 326 (H) mm / 10 kg
AD-1688 weighing data logger, AD-1689 tweezers × 1,
0.1 mg 0.2 mg
200, 100, 50
AX-BM-033 dust storage cover
300, 200, 100, 50500, 300,
200, 100, 50
Dimensions (mm/inches)
Models with readability 0.001mg to 0.1mg
1756 Automation Parkway
San Jose, CA 95131
888-726-5931 or 408-263-5333
andweighing.com
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